[1] The oilseed which is not edible -
A.
Sunflower
B.
Cottonseed
C.
Sesamurn
D.
Groundnut
Ans:
Cottonseed
Explanation :
Cottonseed is a non-edible oilseed. Gossypol is a. toxic compound found in the cotton plant. This compound is concentrated in the cottonseed but can also be found in other parts of the plant such as hulls, leaves and stems. Gossypol affects mainly the heart and liver.
[2] Which fruit has its seed out?
A.
Strawberry
B.
Banana
C.
Groundnut
D.
Cashew nut
Ans:
Strawberry
Explanation :
True berries, such as blueberries and cranberries have seeds inside. The strawberry, however has its dry, yellow "seeds" on the outside (each of which is actually considered a separate fruit). The "seeds" seen on the outside of a strawberry are actually the plant's ovaries and are called "achenes."
[3] For immediate energy production in cells, one should take -
A.
Glucose
B.
Proteins
C.
Vitamin C
D.
Sucrose
Ans:
Glucose
Explanation :
Glucose provides immediate energy for our brain and red blood cells. The most pressing need of all cells in the body is for an immediate source of energy. Some cells such as brain cells have severely limited storage capacities for either glucose or ATP, and for this reason, the blood must maintain a fairly constant supply of glucose.
[4] Outside the nucleus DNA is found in -
A.
Golgi bodies
B.
Mitochondria
C.
Ribosome
D.
Endoplasmic reticulum
Ans:
Mitochondria
Explanation :
In eukaiyotic (with nucleus) cells, the vast majority of DNA is found in the nucleus as discrete bodies called chromosomes. The exception to this being the small amount of DNA found in organdies outside the nucleus (mitochondria and chloroplasts). In human cells, more than 99% of the total DNA is nuclear genomic DNA and the remainder mitochondrial.
[5] Animal protein is called first class protein because it is -
A.
easily digestible
B.
delicious in taste
C.
cheaper in the market
D.
rich in essential amino acids
Ans:
rich in essential amino acids
Explanation :
Proteins from animals are called 'first class' proteins - they provide all the essential amino acids, including those that the body can't make. Proteins from plants are 'second class' proteins.
[6] Which one of the following is an autotroph?
A.
Butterfly
B.
Algae
C.
Grasshopper
D.
Mushroom
Ans:
Algae
Explanation :
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
[7] Soilless agriculture refers to -
A.
Hydroponics
B.
Hygroponies
C.
Sericulture
D.
Inter-cropping
Ans:
Hydroponics
Explanation :
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only, or in an inert medium, such as perlite or gravel. Hydroponics is a subset of soilless culture.
[8] An organism that transmits disease from one individual to another is called -
A.
Hybrid
B.
Fragment
C.
Vector
D.
Clone
Ans:
Vector
Explanation :
An organism that transmits a disease agent from an infected to a non-infected animal or plant is known as vector. The major classes of vectors are: • Non-living vectors (food, water, soil, other materials) • Arthropod vectors (fleas, ticks, mosquitoes). • Vertebrate vectors (rats, mice, cats, dogs, birds)
[9] Which part of the cinchona yields a drug?
A.
Pericarp
B.
Bark
C.
Endosperm
D.
Leaf
Ans:
Bark
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Cottonseed is a non-edible oilseed. Gossypol is a. toxic compound found in the cotton plant. This compound is concentrated in the cottonseed but can also be found in other parts of the plant such as hulls, leaves and stems. Gossypol affects mainly the heart and liver.
[2] Which fruit has its seed out?
A.
Strawberry
B.
Banana
C.
Groundnut
D.
Cashew nut
Ans:
Strawberry
Explanation :
True berries, such as blueberries and cranberries have seeds inside. The strawberry, however has its dry, yellow "seeds" on the outside (each of which is actually considered a separate fruit). The "seeds" seen on the outside of a strawberry are actually the plant's ovaries and are called "achenes."
[3] For immediate energy production in cells, one should take -
A.
Glucose
B.
Proteins
C.
Vitamin C
D.
Sucrose
Ans:
Glucose
Explanation :
Glucose provides immediate energy for our brain and red blood cells. The most pressing need of all cells in the body is for an immediate source of energy. Some cells such as brain cells have severely limited storage capacities for either glucose or ATP, and for this reason, the blood must maintain a fairly constant supply of glucose.
[4] Outside the nucleus DNA is found in -
A.
Golgi bodies
B.
Mitochondria
C.
Ribosome
D.
Endoplasmic reticulum
Ans:
Mitochondria
Explanation :
In eukaiyotic (with nucleus) cells, the vast majority of DNA is found in the nucleus as discrete bodies called chromosomes. The exception to this being the small amount of DNA found in organdies outside the nucleus (mitochondria and chloroplasts). In human cells, more than 99% of the total DNA is nuclear genomic DNA and the remainder mitochondrial.
[5] Animal protein is called first class protein because it is -
A.
easily digestible
B.
delicious in taste
C.
cheaper in the market
D.
rich in essential amino acids
Ans:
rich in essential amino acids
Explanation :
Proteins from animals are called 'first class' proteins - they provide all the essential amino acids, including those that the body can't make. Proteins from plants are 'second class' proteins.
[6] Which one of the following is an autotroph?
A.
Butterfly
B.
Algae
C.
Grasshopper
D.
Mushroom
Ans:
Algae
Explanation :
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
[7] Soilless agriculture refers to -
A.
Hydroponics
B.
Hygroponies
C.
Sericulture
D.
Inter-cropping
Ans:
Hydroponics
Explanation :
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only, or in an inert medium, such as perlite or gravel. Hydroponics is a subset of soilless culture.
[8] An organism that transmits disease from one individual to another is called -
A.
Hybrid
B.
Fragment
C.
Vector
D.
Clone
Ans:
Vector
Explanation :
An organism that transmits a disease agent from an infected to a non-infected animal or plant is known as vector. The major classes of vectors are: • Non-living vectors (food, water, soil, other materials) • Arthropod vectors (fleas, ticks, mosquitoes). • Vertebrate vectors (rats, mice, cats, dogs, birds)
[9] Which part of the cinchona yields a drug?
A.
Pericarp
B.
Bark
C.
Endosperm
D.
Leaf
Ans:
Bark
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Glucose provides immediate energy for our brain and red blood cells. The most pressing need of all cells in the body is for an immediate source of energy. Some cells such as brain cells have severely limited storage capacities for either glucose or ATP, and for this reason, the blood must maintain a fairly constant supply of glucose.
[4] Outside the nucleus DNA is found in -
A.
Golgi bodies
B.
Mitochondria
C.
Ribosome
D.
Endoplasmic reticulum
Ans:
Mitochondria
Explanation :
In eukaiyotic (with nucleus) cells, the vast majority of DNA is found in the nucleus as discrete bodies called chromosomes. The exception to this being the small amount of DNA found in organdies outside the nucleus (mitochondria and chloroplasts). In human cells, more than 99% of the total DNA is nuclear genomic DNA and the remainder mitochondrial.
[5] Animal protein is called first class protein because it is -
A.
easily digestible
B.
delicious in taste
C.
cheaper in the market
D.
rich in essential amino acids
Ans:
rich in essential amino acids
Explanation :
Proteins from animals are called 'first class' proteins - they provide all the essential amino acids, including those that the body can't make. Proteins from plants are 'second class' proteins.
[6] Which one of the following is an autotroph?
A.
Butterfly
B.
Algae
C.
Grasshopper
D.
Mushroom
Ans:
Algae
Explanation :
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
[7] Soilless agriculture refers to -
A.
Hydroponics
B.
Hygroponies
C.
Sericulture
D.
Inter-cropping
Ans:
Hydroponics
Explanation :
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only, or in an inert medium, such as perlite or gravel. Hydroponics is a subset of soilless culture.
[8] An organism that transmits disease from one individual to another is called -
A.
Hybrid
B.
Fragment
C.
Vector
D.
Clone
Ans:
Vector
Explanation :
An organism that transmits a disease agent from an infected to a non-infected animal or plant is known as vector. The major classes of vectors are: • Non-living vectors (food, water, soil, other materials) • Arthropod vectors (fleas, ticks, mosquitoes). • Vertebrate vectors (rats, mice, cats, dogs, birds)
[9] Which part of the cinchona yields a drug?
A.
Pericarp
B.
Bark
C.
Endosperm
D.
Leaf
Ans:
Bark
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Proteins from animals are called 'first class' proteins - they provide all the essential amino acids, including those that the body can't make. Proteins from plants are 'second class' proteins.
[6] Which one of the following is an autotroph?
A.
Butterfly
B.
Algae
C.
Grasshopper
D.
Mushroom
Ans:
Algae
Explanation :
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
[7] Soilless agriculture refers to -
A.
Hydroponics
B.
Hygroponies
C.
Sericulture
D.
Inter-cropping
Ans:
Hydroponics
Explanation :
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only, or in an inert medium, such as perlite or gravel. Hydroponics is a subset of soilless culture.
[8] An organism that transmits disease from one individual to another is called -
A.
Hybrid
B.
Fragment
C.
Vector
D.
Clone
Ans:
Vector
Explanation :
An organism that transmits a disease agent from an infected to a non-infected animal or plant is known as vector. The major classes of vectors are: • Non-living vectors (food, water, soil, other materials) • Arthropod vectors (fleas, ticks, mosquitoes). • Vertebrate vectors (rats, mice, cats, dogs, birds)
[9] Which part of the cinchona yields a drug?
A.
Pericarp
B.
Bark
C.
Endosperm
D.
Leaf
Ans:
Bark
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Hydroponics is a subset of hydroculture and is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only, or in an inert medium, such as perlite or gravel. Hydroponics is a subset of soilless culture.
[8] An organism that transmits disease from one individual to another is called -
A.
Hybrid
B.
Fragment
C.
Vector
D.
Clone
Ans:
Vector
Explanation :
An organism that transmits a disease agent from an infected to a non-infected animal or plant is known as vector. The major classes of vectors are: • Non-living vectors (food, water, soil, other materials) • Arthropod vectors (fleas, ticks, mosquitoes). • Vertebrate vectors (rats, mice, cats, dogs, birds)
[9] Which part of the cinchona yields a drug?
A.
Pericarp
B.
Bark
C.
Endosperm
D.
Leaf
Ans:
Bark
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and antiinflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.
[10] Which of the following is another name for the fish farming revolution?
A.
Blue revolution
B.
White revolution
C.
Yellow revolution
D.
Brown revolution
Ans:
Blue revolution
Explanation :
Blue Revolution means the adoption of a package programme to increase the production of fish and marine products. The Blue Revolution in India was started in 1970 during the Fifth Five-Year Plan when the Central Government sponsored the Fish Farmers Development Agency.
[11] Which of the following procedure treats spinal stenosis (stricture)?
A.
Laminoplasty
B.
Corpectomy
C.
Foraminotomy
D.
All of the above
Ans:
All of the above
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Spinal stenosis is a narrowing of spaces in the spine (backbone) that results in pressure on the spinal cord and/or nerve roots. Some of its surgical treatments include: – A cervical laminoplasty is often performed to relieve the symptoms of spinal stenosis. It is a surgical procedure that treats a painfully restricted spinal canal by creating more space for the spinal cord and nerve roots, immediately relieving pressure. Cervical Corpectomy is also used as surgical treatment of spinal stenosis when a portion of the vertebra and adjacent intervertebral discs are removed for decompression of the cervical spinal cord and spinal nerves. Foraminotomy (when the foramen, the area where the nerve roots exit the spinal canal, is removed to increase space over a nerve canal) is also used as surgical treatment of spinal stenosis. This surgery can be done alone or along with a laminoplasty.
[12] Which of the following range of Air Pollutant Index is considered as hazardous?
A.
301-500
B.
201-300
C.
101-200
D.
401-500
Ans:
301-500
Explanation :
An Air Quality Index (AQI) of 301-500 is considered as hazardous to human health. It denotes the severely polluted state of air. AQI values over 300 trigger health warnings of emergency conditions. The entire population is even more likely to be affected by serious health effects.
[13] DNA shows hyperchromicity on:
A.
heating
B.
cooling
C.
crystallizing
D.
replication
Ans:
heating
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
When a DNA solution is heated enough, the doublestranded DNA unwinds, and the Hydrogen bonds that hold the two strands together weaken and finally break. The process of breaking a double-stranded DNA into single strands is known as DNA denaturation, or DNA melting. The hyperchromicity of DNA occurs when the DNA duplex is denatured.
[14] Meibomian glands are located in -
A.
Eye
B.
Ear
C.
Nose
D.
Skin
Ans:
Eye
Explanation :
Meibomian glands are the tiny oil glands which line the margin of the eyelids (the edges which touch when the eyelids are closed). These glands secrete oil which coats the surface of our eyes and keeps the water component of our tears from evaporating (drying out). Together, the water and the oil layer make up the tear film.
[15] Which of the following vitamins are water soluble?
A.
Vit. A and Vit. B
B.
Vit. B and Vit. C
C.
Vit. C and Vit. D
D.
Vit. A and Vit. K
Ans:
Vit. B and Vit. C
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Vitamins are classified as either fat soluble (vitamins A. D, E and K) or water soluble (vitamins B and C). The fat soluble vitamins are soluble in lipids (fats); water-soluble vitamins are those that dissolve in water upon entering the body. Because of this, our body cannot store excess amounts of water-soluble vitamins for later use.
[16] Siderosis is a disease caused by the inhalation of -
A.
silica dust
B.
iron dust
C.
zinc dust
D.
coal dust
Ans:
iron dust
Explanation :
Siderosis, also known by the name of Welder’s Lung is a pathological condition of the lungs caused by chronic exposure to iron oxide dust, usually at the workplace.Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on Xrays as small, opaque spots on the worker’s lungs.
[17] Which of the following is used as anesthetic?
A.
N2
B.
N2O
C.
CHI
D.
CO2
Ans:
N2O
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Nitrous oxide (N2O), commonly known as laughing gas or happy gas, is the most commonly used inhalation anesthetic in dentistry and is commonly used in emergency centers and ambulatory surgery centers as well. It is an inorganic inhalation agent that is colorless, odorless to sweet-smelling, and nonirritating to the tissues.
[18] Which organ gets affected in Weil’s disease?
A.
Liver
B.
Lung
C.
Heart
D.
Kidney
Ans:
Kidney
Explanation :
Weil’s disease is a severe form of leptospirosis, a type of infection caused by Leptospira bacteria. The classic form of severe leptospirosis is known as Weil’s disease, which is characterized by liver damage (causing jaundice), kidney failure, and bleeding.
[19] The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
A.
Montreal
B.
Osaka
C.
Geneva
D.
Florida
Ans:
Montreal
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was signed in Montreal, Canada in 1987. Known as Montreal Protocol on Substances that Deplete the Ozone Layer, it is an international treaty designed to protect the ozone layer by phasing out the production of numerous sub stances that are responsible for ozone depletion.
[20] Algal bloom results from -
A.
Global warming
B.
Salination
C.
Eutrophication
D.
Biomagnification
Ans:
Eutrophication
Explanation :
An algal bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems, and are recognized by the discoloration in the water from their pigments. Algal blooms are the consequence of the enrichment of a water body with nutrients, usually with an excess amount of nutrients. This is known as eutrophication.
[21] Which of the following is a Dominant Autosomal Disorder?
A.
Albinism
B.
Cystic Fibrosis
C.
Phenyl Ketorunia
D.
Alzheimer's Disease
Ans:
Alzheimer's Disease
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the non- sex chromosomes (autosomes). The early-onset form of Alzheimer disease is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the altered gene from one affected parent.
[22] The latex of which plant is used commercially?
A.
Papaya plant
B.
Sial kanta plant
C.
Rubber plant
D.
Banyan tree
Ans:
Rubber plant
Explanation :
Natural rubber is harvested mainly in the form of the latex from the rubber tree. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called “tapping”. The latex then is refined into rubber ready for commercial processing.
[23] Which of the following causes swine flu?
A.
Bacteria
B.
Fungi
C.
Tapeworm
D.
Virus
Ans:
Virus
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
Swine influenza, also called pig influenza, swine flu, hog flu and pig flu, is an infection caused by any one of several types of swine influenza viruses. Swine flu, also known as the H1N1 virus, is a relatively new strain of an influenza virus that causes symptoms similar to the regular flu. It originated in pigs, but is spread primarily from person to person.
[24] Which of the following plays an important role in photosynthesis?
A.
Chloroplast
B.
Centrosome
C.
Tonoplast
D.
Nematoblast
Ans:
Chloroplast
Explanation :
A chloroplast is an organelle unique to plant cells that contains chlorophyll (makes plants green) and is responsible for enabling photosynthesis. The chloroplasts conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energystorage molecules while freeing oxygen from water.
[25] What is the transplantation of graft between genetically identical individuals?
A.
Autograft
B.
Isograft
C.
Allograft
D.
Xenograft
Ans:
Isograft
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.
Explanation :
An isogenic graft or isograft is a graft between genetically identical individuals(i.e. monozygotic twins). Typically, isografts are either grafts between animals of a single highly inbred strain, between the F1 hybrids produced by crossing inbred strains, or between identical twins.