[1] Which one of the following is commonly known as Pond Silk?
A.
Spirogyra
B.
Rhizopus
C.
Yeast
D.
Ulothrix
Ans:
Spirogyra
Explanation :
Pond silk is the common name of Spirogyra (algae) because it is very slimy in shape. It is also known as pond silk, water silk, pond scum or mermaid's trees because of its bright green silky appearance. Its filaments shine like silk due to the presence of mucilage.
[2] Normal blood pressure reading of an adult human :
A.
80/120 mm Hg
B.
120/80 mm Hg
C.
130/90 mm Hg
D.
160/95 mm Hg
Ans:
120/80 mm Hg
Explanation :
According to the American Heart Association (AHA), normal blood pressure is a systolic pressure of less than 120 millimeters of mercury (mm Hg) and a diastolic pressure of less than 80 mm Hg, or 120/80 mm Hg. Having a blood pressure greater than 140/ 90 mm Hg is considered high blood pressure or hypertension.
[3] The disease which has been eradicated :
A.
Mumps
B.
Measles
C.
Small pox
D.
Chicken pox
Ans:
Small pox
Explanation :
Smallpox was an infectious disease caused by either of two virus variants, Variola major and Variola minor. After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest which was declared eradicated in 2011.
[4] Xenobiotics which are inherently resistant to microbial attack are called as:
A.
Biodegradable
B.
Persistent
C.
All of the given options
D.
Recalcitrant
Ans:
Recalcitrant
Explanation :
The compounds that resist biodegradation and thereby persist in the environment are called recalcitrant. The recalcitrant xenobiotic compounds can be grouped into the following six types: (i) halocarbons; (ii) polychlorinated biphenyls; (iii) synthetic polymers; (iv) alkylbenzyl sulphonates; (v) oil mixture and (vi) others.
[5] Water conduction takes place in mosses through -
A.
Xylem and Phloem
B.
Xylem
C.
Collenchyma
D.
Parenchyma
Ans:
Parenchyma
Explanation :
Botanically, mosses are non-vascular plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis. They have no vascular system to transport water. They do not have a well-developed xylem. Their conducting tissue is made up of parenchyma.
[6] Companion cells of phloem are found in -
A.
Gymnosperms
B.
Bryophyta
C.
Pteridophyta
D.
Angiosperms
Ans:
Angiosperms
Explanation :
Only in angiosperms are sieve tubes and companion cells found in the phloem. In other vascular plants, parenchyma cells function in the same way as companion cells (that is, as the sieve cell’s living protoplasm), but they are not derived from the same mother cell as the sieve element.
[7] The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin -
A.
D
B.
C
C.
B6
D.
K
Ans:
C
Explanation :
Vitamin C is quite unstable when cooked or stored improperly. It is very liable and easily destroyed during cooking as well as storage. It is most susceptible to heat destruction.
[8] 'Survival of the fittest' was coined by -
A.
Darwin
B.
Lamarck
C.
Mendel
D.
Weismarm
Ans:
Darwin
Explanation :
The ‘survival of the fittest’ quotation is attributed to Charles Darwin. He said, “It is not the strongest or the most intelligent who will survive but those who can best manage change.” However, Herbert Spencer first used the phrase – after reading Charles Darwin’s On the Origin of Species – in his Principles of Biology (1864).
[9] To conserve coral reefs, the Government of India declared one of the following as Marine Park ;
A.
Gulf of Kutch
B.
Lakshadweep Islands
C.
Gulf of Mannar
D.
Andaman Islands
Ans:
Gulf of Kutch
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Pond silk is the common name of Spirogyra (algae) because it is very slimy in shape. It is also known as pond silk, water silk, pond scum or mermaid's trees because of its bright green silky appearance. Its filaments shine like silk due to the presence of mucilage.
[2] Normal blood pressure reading of an adult human :
A.
80/120 mm Hg
B.
120/80 mm Hg
C.
130/90 mm Hg
D.
160/95 mm Hg
Ans:
120/80 mm Hg
Explanation :
According to the American Heart Association (AHA), normal blood pressure is a systolic pressure of less than 120 millimeters of mercury (mm Hg) and a diastolic pressure of less than 80 mm Hg, or 120/80 mm Hg. Having a blood pressure greater than 140/ 90 mm Hg is considered high blood pressure or hypertension.
[3] The disease which has been eradicated :
A.
Mumps
B.
Measles
C.
Small pox
D.
Chicken pox
Ans:
Small pox
Explanation :
Smallpox was an infectious disease caused by either of two virus variants, Variola major and Variola minor. After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest which was declared eradicated in 2011.
[4] Xenobiotics which are inherently resistant to microbial attack are called as:
A.
Biodegradable
B.
Persistent
C.
All of the given options
D.
Recalcitrant
Ans:
Recalcitrant
Explanation :
The compounds that resist biodegradation and thereby persist in the environment are called recalcitrant. The recalcitrant xenobiotic compounds can be grouped into the following six types: (i) halocarbons; (ii) polychlorinated biphenyls; (iii) synthetic polymers; (iv) alkylbenzyl sulphonates; (v) oil mixture and (vi) others.
[5] Water conduction takes place in mosses through -
A.
Xylem and Phloem
B.
Xylem
C.
Collenchyma
D.
Parenchyma
Ans:
Parenchyma
Explanation :
Botanically, mosses are non-vascular plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis. They have no vascular system to transport water. They do not have a well-developed xylem. Their conducting tissue is made up of parenchyma.
[6] Companion cells of phloem are found in -
A.
Gymnosperms
B.
Bryophyta
C.
Pteridophyta
D.
Angiosperms
Ans:
Angiosperms
Explanation :
Only in angiosperms are sieve tubes and companion cells found in the phloem. In other vascular plants, parenchyma cells function in the same way as companion cells (that is, as the sieve cell’s living protoplasm), but they are not derived from the same mother cell as the sieve element.
[7] The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin -
A.
D
B.
C
C.
B6
D.
K
Ans:
C
Explanation :
Vitamin C is quite unstable when cooked or stored improperly. It is very liable and easily destroyed during cooking as well as storage. It is most susceptible to heat destruction.
[8] 'Survival of the fittest' was coined by -
A.
Darwin
B.
Lamarck
C.
Mendel
D.
Weismarm
Ans:
Darwin
Explanation :
The ‘survival of the fittest’ quotation is attributed to Charles Darwin. He said, “It is not the strongest or the most intelligent who will survive but those who can best manage change.” However, Herbert Spencer first used the phrase – after reading Charles Darwin’s On the Origin of Species – in his Principles of Biology (1864).
[9] To conserve coral reefs, the Government of India declared one of the following as Marine Park ;
A.
Gulf of Kutch
B.
Lakshadweep Islands
C.
Gulf of Mannar
D.
Andaman Islands
Ans:
Gulf of Kutch
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Smallpox was an infectious disease caused by either of two virus variants, Variola major and Variola minor. After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest which was declared eradicated in 2011.
[4] Xenobiotics which are inherently resistant to microbial attack are called as:
A.
Biodegradable
B.
Persistent
C.
All of the given options
D.
Recalcitrant
Ans:
Recalcitrant
Explanation :
The compounds that resist biodegradation and thereby persist in the environment are called recalcitrant. The recalcitrant xenobiotic compounds can be grouped into the following six types: (i) halocarbons; (ii) polychlorinated biphenyls; (iii) synthetic polymers; (iv) alkylbenzyl sulphonates; (v) oil mixture and (vi) others.
[5] Water conduction takes place in mosses through -
A.
Xylem and Phloem
B.
Xylem
C.
Collenchyma
D.
Parenchyma
Ans:
Parenchyma
Explanation :
Botanically, mosses are non-vascular plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis. They have no vascular system to transport water. They do not have a well-developed xylem. Their conducting tissue is made up of parenchyma.
[6] Companion cells of phloem are found in -
A.
Gymnosperms
B.
Bryophyta
C.
Pteridophyta
D.
Angiosperms
Ans:
Angiosperms
Explanation :
Only in angiosperms are sieve tubes and companion cells found in the phloem. In other vascular plants, parenchyma cells function in the same way as companion cells (that is, as the sieve cell’s living protoplasm), but they are not derived from the same mother cell as the sieve element.
[7] The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin -
A.
D
B.
C
C.
B6
D.
K
Ans:
C
Explanation :
Vitamin C is quite unstable when cooked or stored improperly. It is very liable and easily destroyed during cooking as well as storage. It is most susceptible to heat destruction.
[8] 'Survival of the fittest' was coined by -
A.
Darwin
B.
Lamarck
C.
Mendel
D.
Weismarm
Ans:
Darwin
Explanation :
The ‘survival of the fittest’ quotation is attributed to Charles Darwin. He said, “It is not the strongest or the most intelligent who will survive but those who can best manage change.” However, Herbert Spencer first used the phrase – after reading Charles Darwin’s On the Origin of Species – in his Principles of Biology (1864).
[9] To conserve coral reefs, the Government of India declared one of the following as Marine Park ;
A.
Gulf of Kutch
B.
Lakshadweep Islands
C.
Gulf of Mannar
D.
Andaman Islands
Ans:
Gulf of Kutch
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Botanically, mosses are non-vascular plants that absorb water and nutrients mainly through their leaves and harvest carbon dioxide and sunlight to create food by photosynthesis. They have no vascular system to transport water. They do not have a well-developed xylem. Their conducting tissue is made up of parenchyma.
[6] Companion cells of phloem are found in -
A.
Gymnosperms
B.
Bryophyta
C.
Pteridophyta
D.
Angiosperms
Ans:
Angiosperms
Explanation :
Only in angiosperms are sieve tubes and companion cells found in the phloem. In other vascular plants, parenchyma cells function in the same way as companion cells (that is, as the sieve cell’s living protoplasm), but they are not derived from the same mother cell as the sieve element.
[7] The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin -
A.
D
B.
C
C.
B6
D.
K
Ans:
C
Explanation :
Vitamin C is quite unstable when cooked or stored improperly. It is very liable and easily destroyed during cooking as well as storage. It is most susceptible to heat destruction.
[8] 'Survival of the fittest' was coined by -
A.
Darwin
B.
Lamarck
C.
Mendel
D.
Weismarm
Ans:
Darwin
Explanation :
The ‘survival of the fittest’ quotation is attributed to Charles Darwin. He said, “It is not the strongest or the most intelligent who will survive but those who can best manage change.” However, Herbert Spencer first used the phrase – after reading Charles Darwin’s On the Origin of Species – in his Principles of Biology (1864).
[9] To conserve coral reefs, the Government of India declared one of the following as Marine Park ;
A.
Gulf of Kutch
B.
Lakshadweep Islands
C.
Gulf of Mannar
D.
Andaman Islands
Ans:
Gulf of Kutch
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Vitamin C is quite unstable when cooked or stored improperly. It is very liable and easily destroyed during cooking as well as storage. It is most susceptible to heat destruction.
[8] 'Survival of the fittest' was coined by -
A.
Darwin
B.
Lamarck
C.
Mendel
D.
Weismarm
Ans:
Darwin
Explanation :
The ‘survival of the fittest’ quotation is attributed to Charles Darwin. He said, “It is not the strongest or the most intelligent who will survive but those who can best manage change.” However, Herbert Spencer first used the phrase – after reading Charles Darwin’s On the Origin of Species – in his Principles of Biology (1864).
[9] To conserve coral reefs, the Government of India declared one of the following as Marine Park ;
A.
Gulf of Kutch
B.
Lakshadweep Islands
C.
Gulf of Mannar
D.
Andaman Islands
Ans:
Gulf of Kutch
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
The government of India, in 1982, declared a core area of 110 km2 in the Gulf of Kutch as Marine National Park for the conservation of coral reefs. It is situated on the southern shore of the Gulf of Kachchh in the Jamnagar District of Gujarat. There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs. The coral formations of the Gulf of Kutch represent one of the extreme northern limits of corals in the Indian Ocean.
[10] The special modified epidermal cells surrounding stomatal pore are called -
A.
Epithelial cells
B.
Guard cells
C.
Subsidiary cells
D.
Accessory cells
Ans:
Guard cells
Explanation :
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
[11] Blood cancer is commonly known as -
A.
Leucoderma
B.
Leukaemia
C.
Haemophilia
D.
Sickle-cell. anaemia
Ans:
Leukaemia
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Leukemia is a cancer of blood and bone marrow. When a person has leukemia, the body makes too many white blood cells (leukocytes). The causes of most types of leukemia are not known. In general, all cancers have a breakdown in the normal way cell division is controlled.
[12] The hardest natural substance is -
A.
Diamond
B.
Iron
C.
Graphite
D.
Copper
Ans:
Diamond
Explanation :
Diamond is the hardest naturally occurring substance found on Earth. It is due to the giant molecular structure of diamond in which each carbon atom is covalently bonded to four other carbon atoms
[13] Which of the following is the main thinking part of the human brain?
A.
Hind-brain
B.
Cerebellum
C.
Mid-brain
D.
Fore-brain
Ans:
Fore-brain
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Fore Brain is the main thinking part of the brain and controls the voluntary actions.
[14] The non-green heterotrophic plants of plant kingdom are -
A.
mosses
B.
ferns
C.
algae
D.
fungi
Ans:
fungi
Explanation :
Animals and non-green plants cannot prepare their own food and depend directly or indirectly on green plants for their nutrition. This mode of nutrition is called heterotrophic nutrition. Fungi are non- chlorophyllos. They should be classified as animals because of their heterotrophic mode of nutrition. But, they are classified under plant kingdom as they have many plant characters.
[15] Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
A.
Thymus gland
B.
Thyroid gland
C.
Adrenal gland
D.
Hypothalamus gland
Ans:
Hypothalamus gland
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Hormone secretion from the anterior pituitary gland is regulated by releasing hormones secreted by the hypothalamus. Neuro-endocrine cells in the hypothalamus project axons to the median eminence, at the base of the brain. At this site, these cells can release substances into small blood vessels that travel directly to the anterior pituitary gland
[16] In which of the following multiple epidermis is found?
A.
Boerhaavia
B.
Amaranthus
C.
Helianthus
D.
Nelium
Ans:
Nelium
Explanation :
It is assumed that protodermal cells divide periclinally in certain cases to form multiseriate or multiple epidermis. The multiple epidermis is found in some organs like roots of orchids (Vanda), leaves of Ficus, Nerium, Piperomia, etc. In Nerium, it is found on both surfaces
[17] Transpiration through leaves is called as -
A.
Cauline transpiration
B.
Foliar transpiration
C.
Cuticular transpiration
D.
Lenticular transpiration
Ans:
Foliar transpiration
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
[18] What are the folds found in the mucous lining of the empty stomach?
A.
Typhlosole
B.
Areolae
C.
Rugae
D.
Villi
Ans:
Rugae
Explanation :
The inner layer of the stomach is full of wrinkles known as rugae (or gastric folds). Rugae both allow the stomach to stretch in order to accommodate large meals and help to grip and move food during digestion.
[19] Name the Japanese art of miniaturisation of trees.
A.
Bonsai
B.
Kirigami
C.
Origami
D.
Ikebana
Ans:
Bonsai
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Bonsai is the art of aesthetic miniaturization of trees and plants in containers. A bonsai plant is not a dwarf plant but equal to the full sized flowering plant. The main objective of bonsai plants is to create'a tree or plant, and even landscapes, in miniature.
[20] Which one of the following is not a photosynthetic pigment?
A.
Chlorophyll
B.
Phycobilin
C.
Carotenoid
D.
Arthocyanin
Ans:
Arthocyanin
Explanation :
There are three basic classes of photosynthetic pigments: Chlorophylls (greenish pigments), Carotenoids (usually red, orange, or yellow pigments) and Phycobilins (water-soluble pigments found in the cytoplasm). Anthocyartins play no part in photosynthesis
[21] A clone is a group of individuals obtained through -
A.
Hybridisation
B.
Micropropagation
C.
Cross pollination
D.
Self pollination
Ans:
Micropropagation
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore methods. It leads to the production of plants that are clones of each other. It often produces more robust plants, leading to accelerated growth com- pared to similar plants produced by conventional methods - like cuttings.
[22] What does the word 'amphibian' means?
A.
Three lives
B.
Four lives
C.
Two lives
D.
One lives
Ans:
Two lives
Explanation :
The word amphibian means two-lives. Amphibians spend their lives in the water and on land. All amphibians begin their life in water with gills and tails; as they grow, they develop lungs and legs for their life on land. Members of this animal class are frogs, toads, etc.
[23] Molybdenum deficiency affects the activity of -
A.
All of the given options
B.
Chlorate reductase
C.
Nitrogenase
D.
Nitrate reductase
Ans:
Nitrate reductase
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Numerous investigators have shown that nitrate nitrogen accumulates in higher plants and fungi which are deficient in molybdenum. In molybdenum-deficient plants grown in the presence of nitrate, molybdenum is required for the synthesis of nitrate reductase. Molybdenum deficiency results in the decrease of free amino acids in the plants in comparison to normal plants.
[24] When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
A.
Epistasis
B.
Mutation
C.
None of the options
D.
Dominance
Ans:
Epistasis
Explanation :
Epistasis refers to the phenomenon in which one gene hides the effect of the other. In other word, it does not allow the other gene to express itself. This is counterpart of dominance. While dominance works at inter allelic but intragenic level, Epistasis works at inter generic level. Epistasis is of following types: • Due to a recessive allele: A hides the effect of B, • Due to a dominant allele: A hides the effect of B. This may be in one direction only meaning that ei-ther A hides the effect of B or vice versa.
[25] Which of the following is commonly used in preparing custard powder?
A.
raagi
B.
wheat
C.
maize
D.
rice
Ans:
maize
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.
Explanation :
Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Corn-starch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.