1001) Vitamin C is also known as -
Answer
Ascorbic acid
1002) The biological process in which both aerobes and anaerobes degrade organic matter is -
Answer
Composting
1003) The cuticle is absent in -
Answer
Leaf
1004) Which is not a natural fibre?
Answer
Nylon
1005) Glucose is a type of -
Answer
Hexose sugar
1006) Number of mitochondria in bacterial cell is -
Answer
zero
1007) The maximum fixation of solar energy is done by -
Answer
Green plants
1008) The parts of human body affected by Pyria are:
Answer
teeth and gums
1009) What is the most basic criteria used to decide whether something is alive?
Answer
Life processes
1010) The waste management technique that involves the use of microorganisms to remove or neutralize pollutants from contaminated site is called -
Answer
Bio remediation
1011) Who is known as the 'Father of Green Revolution' in India?
Answer
Norman Borlaug
1012) The specific role of Vitamin K is in the synthesis of -
Answer
Prothrombin
1013) Increased RBC's in the blood leads to a condition called -
Answer
Polycythemia
1014) 'Mendel' is known as -
Answer
Father of Biology
1015) What makes a reptile a reptile?
Answer
Egg-laying
1016) Growing agricultural crops between rows of planted trees is known as -
Answer
Taunia system
1017) Riboflavin is a/an -
Answer
Vitamin
1018) Locomotory organ of a starfish is -
Answer
Tube feet
1019) Penicillin is extracted from -
Answer
fungus
1020) HIV is a -
Answer
retrovirus
1021) The deficiency of Niacin-a vitamin of B complex group causes the disease -
Answer
Pellagra
1022) A pair of contrasting characters controlling the same trait is called -
Answer
allele
1023) The main protein found in milk is .
Answer
Casein
1024) The liberation of oxygen during photosynthesis is due to -
Answer
photolysis of water
1025) What is the main purpose of white blood corpuscles?
Answer
to combat infections
1026) The oxygen liberated during photosynthesis comes from -
Answer
Water
1027) Kyoto Protocol is associated with -
Answer
Climate change
1028) The name of the longest muscle in human body is -
Answer
Sartorius muscle
1029) A prokaryotic cell does not have which of the follow in -
Answer
Nucleus
1030) What would be the formula of Fructose?
Answer
C6H12O6
1031) The basic unit of biosystematics is -
Answer
Ecotype
1032) Which endocrine gland is found in chest cavity?
Answer
Thymus gland
1033) In B.C.G. Vaccine the word 'C' stands for -
Answer
Calmette
1034) The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for:
Answer
parts per million
1035) The site where complete digestion of carbohydrates, proteins and fats takes place is called -
Answer
Small Intestine
1036) Polio is caused by -
Answer
Virus
1037) Phototropic movement is controlled by -
Answer
Auxin
1038) Lactogenic hormone is secreted by -
Answer
Pituitary
1039) The type of fruit obtained from a multicarpillary, apocarpous gynoecium is:
Answer
aggregate
1040) The plants, which grow under water stress conditions of deserts are -
Answer
Xerophytes
1041) The oilseed which is not edible -
Answer
Cottonseed
1042) Which fruit has its seed out?
Answer
Strawberry
1043) For immediate energy production in cells, one should take -
Answer
Glucose
1044) Outside the nucleus DNA is found in -
Answer
Mitochondria
1045) Animal protein is called first class protein because it is -
Answer
rich in essential amino acids
1046) Soilless agriculture refers to -
Answer
Hydroponics
1047) An organism that transmits disease from one individual to another is called -
Answer
Vector
1048) Which part of the cinchona yields a drug?
Answer
Bark
1049) DNA shows hyperchromicity on:
Answer
heating
1050) Meibomian glands are located in -
Answer
Eye
1051) Siderosis is a disease caused by the inhalation of -
Answer
iron dust
1052) Which organ gets affected in Weil’s disease?
Answer
Kidney
1053) The first protocol to ban the emissions of chlorofluorocarbons in the atmosphere was made in -
Answer
Montreal
1054) Algal bloom results from -
Answer
Eutrophication
1055) The latex of which plant is used commercially?
Answer
Rubber plant
1056) What is the transplantation of graft between genetically identical individuals?
Answer
Isograft
1057) Blood group was discovered by -
Answer
Landsteiner
1058) In a rainforest, the vegetation that grows under the shade of a canopy is known as -
Answer
Understorey
1059) Clove is obtained from -
Answer
Flower buds
1060) Which part of human body is affected by the ALZHEIMER'S disease?
Answer
Brain
1061) What do you call the study of fungi?
Answer
Mycology
1062) Which word is common in the botanical names of trees like Ashoka, Tamarind or Coral?
Answer
Indica
1063) The part of brain which controls emotional reactions in our body is -
Answer
Hypothalamus
1064) To reduce tooth decay most toothpastes contain a -
Answer
Fluoride
1065) 'Red Data Book' provides an account of -
Answer
Endangered plants and animals
1066) First human heart transplant was performed in -
Answer
1967
1067) The least penetrating power ray is -
Answer
a-Ray
1068) Lungs of a plant are -
Answer
Leaves
1069) Enzymes are -
Answer
Proteins
1070) The largest cells in mammalian blood are -
Answer
Monocytes
1071) Which acid is present in lemon?
Answer
citric acid
1072) Which instrument is used for measuring humidity of atmosphere?
Answer
Hygrometer
1073) Just born baby has the respiratory rate as -
Answer
32 times/minute
1074) Uric acid is the chief nitrogenous wastes in -
Answer
Birds
1075) Who proposed Binomial Nomenclature?
Answer
Linnaeus
1076) Who proposed Five Kingdom Classification?
Answer
R.H. Whittaker
1077) Sporangia bearing leaf of a fern is called -
Answer
Sorus
1078) In India Dugong (sea cow) is found in the bio reserve site of:
Answer
Gulf of Mannar
1079) Life originated by chemosynthesis was proved in the laboratory by -
Answer
Miller
1080) An example of hormone is -
Answer
Oxytocin
1081) What is the famous 'Chipko' movement associated with?
Answer
Trees
1082) Motor skills are associated with which part of the brain?
Answer
Frontal lobe
1083) Chlorophyll containing autotrophic thallophytes is called as -
Answer
Algae
1084) 'Table sugar' is which type of sugar?
Answer
Sucrose
1085) Where does the cabbage store food?
Answer
Leaves
1086) Anemia is related to _.
Answer
iron deficiency
1087) 'Breakbone fever' most commonly known as?
Answer
Dengue
1088) Decoding and interpretation of visual information in brain is associated with -
Answer
Temporal lobe
1089) The food in Onion is stored in the form of -
Answer
Sugar
1090) Which light is least effective in photosynthesis?
Answer
Green light
1091) The maximum fixation of solar energy is done by -
Answer
Green plants
1092) The impact of Green Revolution was felt most in the case of -
Answer
Wheat
1093) At which stage in its life cycle does the silkworm yield the fiber of commercial use -
Answer
Pupa
1094) Lichen is an association between which of the two?
Answer
Algae and fungus
1095) Which one can imitate human speech?
Answer
dolphin
1096) What is called sunshine vitamin?
Answer
Vitamin D
1097) The virus of AIDS affects the growth of -
Answer
T cells in blood
1098) Which enzyme is present in all members of the animal kingdom except Protozoa?
Answer
Amylase
1099) The most serious air pollutant causing health hazard is -
Answer
Sulphur dioxide
1100) Which is the sensory receptor involved in detecting blood pressure?
Answer
Mechano receptor
1101) Normal blood pressure reading of an adult human :
Answer
120/80 mm Hg
1102) The disease which has been eradicated :
Answer
Small pox
1103) Xenobiotics which are inherently resistant to microbial attack are called as:
Answer
Recalcitrant
1104) Water conduction takes place in mosses through -
Answer
Parenchyma
1105) Companion cells of phloem are found in -
Answer
Angiosperms
1106) The vitamin which is very labile and easily destroyed during cooking as well as storage is vitamin -
Answer
C
1107) 'Survival of the fittest' was coined by -
Answer
Darwin
1108) The special modified epidermal cells surrounding stomatal pore are called -
Answer
Guard cells
1109) Blood cancer is commonly known as -
Answer
Leukaemia
1110) The hardest natural substance is -
Answer
Diamond
1111) The non-green heterotrophic plants of plant kingdom are -
Answer
fungi
1112) Which gland in the human body regulates the secretion of hormones from the pituitaiy gland?
Answer
Hypothalamus gland
1113) Transpiration through leaves is called as -
Answer
Foliar transpiration
1114) What are the folds found in the mucous lining of the empty stomach?
Answer
Rugae
1115) Name the Japanese art of miniaturisation of trees.
Answer
Bonsai
1116) A clone is a group of individuals obtained through -
Answer
Micropropagation
1117) What does the word 'amphibian' means?
Answer
Two lives
1118) Molybdenum deficiency affects the activity of -
Answer
Nitrate reductase
1119) When one gene pair hides the effect of the other unit, the phenomenon is referred to as:
Answer
Epistasis
1120) Excretion in Hemichordates takes place by -
Answer
Glomerulus
1121) The highest concentration of urea is found in -
Answer
Hepatic vein
1122) 'Mission Indradhanush' Campaign in India is associated with -
Answer
Vaccination of children
1123) Which cell disorder in our body is responsible for colour blindness?
Answer
Cone cell
1124) Which cell organelle is the site of photosynthesis and also contains chlorophyll?
Answer
chloroplasts
1125) Highest source of air pollution in the world is -
Answer
Automobiles
1126) What is commonly known as 'white plague'?
Answer
Tuberculosis
1127) Which of the digestive organs contains acid?
Answer
Small intestine
1128) Haemophilia is a kind of disease which is -
Answer
hereditary
1129) The largest gland in the Human body is -
Answer
Liver
1130) What is a Pepper plant?
Answer
Vine
1131) The sigmoid colon is a part of -
Answer
Large Intestine
1132) The connective tissue that connects a muscle to a bone is -
Answer
Tendon
1133) What is cultivation of trees, in dwarf form?
Answer
Bonsai
1134) What are Aldehydes?
Answer
Strong reducing agents
1135) 'Antibodies', which protect our body from infections, are which type of compounds?
Answer
Proteins
1136) Potato is a -
Answer
Stem
1137) What is contained in Chlorophyll?
Answer
Magnesium
1138) Why is Carbon Monoxide a pollutant?
Answer
Reacts with haemoglobin
1139) Webbed neck is a characteristic of -
Answer
Turner's syndrome
1140) Compounds that are needed for enzymes to function properly are -
Answer
Vitamins
1141) The tree popularly known as 'Green Gold', but which is an ecological disaster, is -
Answer
Eucalyptus
1142) People with Down's syndrome invariably affected by:
Answer
Alzheimer's disease
1143) Damping off of seedlings is caused by -
Answer
Pythium debaryanum
1144) An eazyme produced by HIV that allows the integration of HIV DNA into the host cell's DNA is -
Answer
Integrase
1145) Interferons are synthesized in response to -
Answer
Virus
1146) The resources which are obtained from bio sphere and have life are -
Answer
Biotic resources
1147) Typhoid fever is caused by -
Answer
Bacteria
1148) Pleura is the covering of -
Answer
Lung
1149) Which drug is used to cure Glaucoma?
Answer
Latanoprost
1150) German Silver is an alloy of -
Answer
Copper, Nickel and Zinc
1151) The first stable product of photosynthesis is -
Answer
Phosphoglyceric acid
1152) The old and worn-out red blood corpuscles are destroyed in -
Answer
Spleen
1153) Self pollination will lead to -
Answer
inbreeding
1154) In any spreadsheet, the address of the first cell is -
Answer
Al
1155) When a single gene controls the expression of more than one character, it is said to be -
Answer
Pleiotropic
1156) The plants which grow well, only in light are known as -
Answer
Heliophytes
1157) Green blocks are referred to -
Answer
Bio-bricks
1158) The type of kidneys present in frog are -
Answer
Mesonephros
1159) The International Commission on Zoological Nomenclature was established in -
Answer
1895
1160) Carolus Linnaeus System of classification is -
Answer
Binomial
1161) The hydrophilic nature of DNA is due to the presence of -
Answer
Biotic resources
1162) The gene which exhibits multiple effects is known as -
Answer
Pleiotropic
1163) The deficiency of vitamin A causes -
Answer
night blindness
1164) The use of heat treatment of ore that includes smelting and roasting is termed as -
Answer
Pyrometallurgy
1165) Leptospirosis is a disease caused by -
Answer
None
1166) Hepatitis affects which organ of the human body?
Answer
Liver
1167) Why is Rann of Kutch of India famous for?
Answer
Tidal and flats
1168) Azolla increases soil fertility for -
Answer
rice cultivation
1169) Haematopoiesis take place in -
Answer
Bone marrow
1170) is a hormone that regulates the amount of glucose in the blood.
Answer
Insulin
1171) What is main root of plants called as?
Answer
Tap root
1172) For digestion of fat, bile is needed. This is secreted by the -
Answer
liver
1173) Which is the largest gland in human body?
Answer
Liver
1174) Which organ of human body secretes Insulin?
Answer
Pancreas
1175) Solar energy is converted into chemical energy during -
Answer
Photosynthesis
1176) is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
Answer
Glycogen
1177) Mechanism preventing interbreeding is called -
Answer
Isolation
1178) Biodegradable wastes can usually be converted into useful substances with the help of -
Answer
Bacteria
1179) Cod liver oil from fish is rich in which vitamin?
Answer
Vitamin D
1180) Organisms using simple food material acquired from inorganic sources in the form of carbon dioxide and water are called -
Answer
Autotrophs
1181) Harvesting season of Kharif crop in India is .
Answer
September, October
1182) The deciduous trees will -
Answer
shed their leaves every year
1183) The suicidal bags of the cell are -
Answer
Lysosomes
1184) Which lobe of human brain is associated with hearing?
Answer
Temporal lobe
1185) "Slipper animalcule" is the common name for:
Answer
Paramecium
1186) The thymus gland produces a hormone called -
Answer
thymosin
1187) Blood group AB has -
Answer
No antibody
1188) What does the word 'amphibian' means?
Answer
Two lives
1189) The best milch breed in the world is -
Answer
Holstein-Friesian
1190) Pulses are obtained from the family -
Answer
Leguminosae
1191) Laws of heredity was put forward by -
Answer
Mendel
1192) Insulin -
Answer
decreases blood sugar
1193) When we touch leaves of 'Touch me not plant", they close, these movements are called -
Answer
seismonastic movements
1194) The concept of tissue culture was introduced by -
Answer
Haberlandt
1195) What accumulates in the muscles after continuous strenuous physical exercise as a result of temporary anaerobic respiration that causes muscular fatigue?
Answer
Lactic acid
1196) Thalassemia is an example of -
Answer
Frame shift mutation
1197) The plant from which cocoa and chocolate are obtained is a -
Answer
small tree
1198) The biggest single-celled organism is -
Answer
Amoeba
1199) Resin is a product of -
Answer
Coniferous trees
1200) Which angiosperm is vessel-less?
Answer
Hydrilla
1201) Who was the first child born alter operative procedure?
Answer
Caesar
1202) The sense of balance is achieved by -
Answer
Cerebellum equilibrium
1203) Christmas factor is involved in -
Answer
Blood Coagulation
1204) Which Vitamins are those, if taken in excess can be dangerous as they are stored in the body?
Answer
A and D
1205) Inhibition of photosynthesis in the presence of O2 in C3 plants is called-
Answer
Warburg effect
1206) In mammals, an important role of excretion is played by -
Answer
Kidneys
1207) Spraying of DDT on crops causes pollution of _.
Answer
Soil & Water
1208) Which cells in pancreas produce Insulin?
Answer
Islets of Langerhans
1209) Yeast is a .
Answer
Fungi
1210) The hormone that stimulates heart beat is -
Answer
Thyroxine
1211) Excessive secretion from the pituitary gland in children results in -
Answer
increased height
1212) Ozone protects biosphere from -
Answer
Ultraviolet rays
1213) Omithophily is effected by -
Answer
birds
1214) The xylem in plants are responsible for -
Answer
transport of water
1215) Blood is red in colour due to the presence of -
Answer
Haemoglobin
1216) Which mosquito is the carrier of Zika virus?
Answer
Aedes
1217) Root cap is derived from -
Answer
Calyptrogen
1218) percent of Delhites are suffering from Asthma and Rhinitis.
Answer
0.11
1219) A group of genes whose activity is coordinated by a DNA site is -
Answer
operon
1220) A universal recipient has the blood group -
Answer
AB
1221) Symbiotic Bacteria responsible for the fixation of atmospheric nitrogen are present in -
Answer
peas
1222) If xylem and phloem are arranged in the same radius, such a vascular bundle is called :
Answer
collateral
1223) Amino acids are required for the synthesis of -
Answer
Proteins
1224) The substrate of Photorespiration is -
Answer
Glycolate
1225) B-Diversity is also known as -
Answer
Ecosystem diversity
1226) Interferons are synthesized in response to -
Answer
Virus
1227) The resources which are obtained from biosphere and have life are -
Answer
Biotic resources
1228) Myrtecaine is study of -
Answer
Ants
1229) HIV often changes its shape due to the presence of an enzyme called -
Answer
Reverse Transcriptase
1230) The largest White Blood Corpuscle is -
Answer
Monocyte
1231) Root Hairs arise from -
Answer
Epidermis
1232) Vermicomposting is done by -
Answer
Worms
1233) A cell increases in volume when it is placed in -
Answer
Hypotonic solution
1234) Five Kingdom classification was given by -
Answer
Whittaker
1235) Animals with Chitinous exoskeleton are -
Answer
Insects
1236) The casual organism of Polio is -
Answer
A virus
1237) Panda belongs to the same family as that -
Answer
Bear
1238) What is the average 'Intelligence Quotient (IQ) of normal' persons?
Answer
90 to 110
1239) A Parenchyma cell which stores ergastic substance is known as -
Answer
Idioblast
1240) Green manure is obtained from -
Answer
Decomposing green legume plants
1241) Movement of hairs in Drosera is referred to as -
Answer
Thigmotropism
1242) Milk of magnesia is a suspension of –
Answer
magnesium hydroxide
1243) The histogen, from which epidermis is formed, is -
Answer
Dermatogen
1244) The kidney shaped guard cells are present in -
Answer
Dicot plants
1245) The scavengers earth are -
Answer
Algae
1246) Bone ossification test is conducted to as certain human -
Answer
Tentative age
1247) The nutritive tissue in the seeds of higher plants is known as -
Answer
endosperm
1248) Yeast is an important source of -
Answer
vitamin B
1249) In cactus, the spines are the modified -
Answer
leaves
1250) The smallest known prokaryotic organism is -
Answer
Mycoplasma
1251) Energy is stored in liver and muscles in the form of -
Answer
glycogen
1252) Pepsin digests .
Answer
proteins in stomach
1253) Intercalary meristems are found in -
Answer
Inter node
1254) Clitellum is found in -
Answer
Earthworm
1255) Water of coconut is -
Answer
degenerated liquid endosperm
1256) Bulbils takes part in -
Answer
Vegetative reproduction
1257) Foramen Magnum is an aperture found in the -
Answer
Skull
1258) What is farming along with animal husbandry called?
Answer
Mixed farming
1259) Beak is formed by -
Answer
jaws
1260) Pinna (external ear) is present in -
Answer
Mammal
1261) Plant genetic material in 'Gene-Bank' is preserved at - 196° C in liquid nitrogen as -
Answer
mature seed (dry)
1262) Flowers emit fragrance to :
Answer
attract insects
1263) In a poultry unit, the factor most influencing the cost is the cost of -
Answer
feed
1264) Solitary cymose inflorescence is observed in -
Answer
Gardenia
1265) Coupling and repulsion are the two states of -
Answer
linkage
1266) Stamens are fused with each other by their anthers and also with the petals in -
Answer
Compositae
1267) An organism which can monitor air pollution is -
Answer
Lichen
1268) The beetroot is the portion of the beet plant -
Answer
tap root
1269) Chlorophyll contains -
Answer
Magnesium
1270) Hydroponics is a method of culture of plants without using -
Answer
soil
1271) Natural system of classification was proposed by botanists.
Answer
British
1272) The metal ion present in vitamin B12 is -
Answer
cobalt
1273) Microbial degradation of nitrates into atmospheric nitrogen is known as-
Answer
Denitrification
1274) Study of organisms in relation to their environment is called -
Answer
Ecology
1275) Red rot of sugarcane is caused by -
Answer
Colletotrichurn falcatum
1276) The fleshy thalamus is edible in -
Answer
Apple
1277) Cactus is referred to as -
Answer
Xerophyte
1278) How many neck canal cells are found in the archegonium of a fern?
Answer
One
1279) Medicine of Quinine is provided by -
Answer
Cinchona plant
1280) Process through which plants reproduce -
Answer
Pollination
1281) Widal test is used for the diagnosis of -
Answer
Typhoid
1282) The pancreas secretes -
Answer
Insulin
1283) The endangered species are listed in what colour data book?
Answer
Red
1284) What is true about viruses without exception?
Answer
They can multiply only in host cells
1285) Bryophytes are often called as amphibian plant because they :
Answer
are found both in water and on land
1286) DPT vaccine is administered to prevent diseases like:
Answer
Diphtheria, Pertussis and Tetanus
1287) Vitamin E is particularly important for -
Answer
normal activity of sex glands
1288) Mushroom cultivation is not useful in -
Answer
Biological control of crop diseases
1289) Blubber is -
Answer
a layer of thick fat
1290) The main function of white blood cells in the body is to -
Answer
protect body against diseases
1291) The expansion for AIDS is -
Answer
Acquired Immuno Deficiency Syndrome
1292) The orange colour of carrot is because of -
Answer
Carotene
1293) Ginger is a stem and not a root because -
Answer
It has nodes and internodes
1294) Adherent mucoid alkaline substance covering the inner lining of stomach is to -
Answer
prevent the action of pepsin of mucosa
1295) Two richest known sources of edible protein are -
Answer
soyabean and groundnut
1296) Reserpine is used to -
Answer
reduce high blood pressure
1297) Vitamin E is particularly important for -
Answer
normal activity of sex glands
1298) What happens to a person who receives the wrong type of blood?
Answer
The RBCs agglutinate
1299) Maximum photosynthetic activity occurs in -
Answer
blue and red region of light
1300) Radioimmunoassay (RIA) is a therapy used -
Answer
to detect antibodies and hormones present in the blood samples
1301) Fat soluble vitamins are -
Answer
Calciferol, Carotene, Tocopherol
1302) What is "ALZHEIMER'S" disease?
Answer
It is a disorder of the brain
1303) Grey hair is caused due to -
Answer
loss of melanin in epidermal cells
1304) Stomatal opening is based on -
Answer
Endosmosis
1305) Optics is the study of:
Answer
Nature and properties of light
1306) Bakeries use yeast in bread-making because it -
Answer
makes the bread soft and spongy
1307) The elements known as primary nutrients for plants
Answer
Nitrogen, Phosphorus and Potassium
1308) Endoscope is an instrument used to detect the ulcers in the stomach has a long narrow tube (with a small glowing bulb at one end) which is inserted in to the stomach through the mouth contains.
Answer
optical fibre
1309) Kelp is -
Answer
Sea weed rich in iodine content
1310) The second Green Revolution aims at increasing agricultural output to promote -
Answer
Inclusive growth
1311) Food crops comprise.
Answer
Foodgrains, Pulses, Edible oilseeds
1312) Point out the incorrect pair -
Answer
Operation Flood - Irrigation Development
1313) Transpiration increases in -
Answer
Hot, thy and windy condition
1314) For a healthy heart, one needs to take a balanced diet, adequate sleep and -
Answer
do right amount of physical exercise
1315) The main use of salt in the diet is to -
Answer
produce in small amounts the hydrochloric acid required for the digestion of food
1316) Identify the correct statement with respect to Biogas.
Answer
Gas produced by fermentertian of biomass
1317) Heart attack occurs due to -
Answer
Lack of supply of blood to the heart itself
1318) 'Green House Effect' means -
Answer
trapping of solar energy due to carbon dioxide gases
1319) Fat present below the skin surface in our body acts as a barrier against -
Answer
loss of heat from the body
1320) Xylem fibres are made up of -
Answer
Scierenchyma cells with thick walls
1321) Membrane lipids of chill-sensitive plants contain -
Answer
high proportion of unsaturated fatty acids.
1322) Natural organic fertilizers are found to be better then chemical fertilizers because -
Answer
organic fertilizers sustain soil productivity
1323) Select the High Yielding Varieties of seed-crops developed under Green Revolution in India.
Answer
Rice, Wheat, Pulses, Oil seeds and Sugarcane
1324) A person with 'AB' blood group is sometimes called a universal recipient because of the -
Answer
lack of antibodies in his blood
1325) The duration 19-21 days refers to:
Answer
the period of menstrual cycle soon after menstruation, during which fertilization is most likely to occur
1326) 'Kyoto Protocol', an agreement; signed by various =Indices, is associated with -
Answer
Clean Environment and Climate Change
1327) Carbon monoxide poisoning can be cured by -
Answer
exposing the affected person to fresh oxygen.
1328) The main function of insulin in the human body is -
Answer
to control the level of sugar in the body
1329) The DPT vaccine is given to young babies to protect them from -
Answer
diphtheria, whooping cough and tetanus
1330) The process of photosynthesis involves conversion of -
Answer
solar energy into chemical energy
1331) When a child is born, what happens to its blood circulation?
Answer
Its blood carries wastes for the first time
1332) Quarantine regulation is concerned with -
Answer
prevention of entry of diseased organism
1333) Which is the effect of antigen in an ill person?
Answer
It increases the production of antibiotics
1334) Mitosis is a type of cell division in which -
Answer
The Chromosome number is doubled
1335) The danger signals are red while the eye is more sensitive to yellow because -
Answer
the wavelength of red light is more than yellow light
1336) Hashish is obtained from a plant. From which part of the plant is it obtained?
Answer
Exudate from leaves and female inflorescences.
1337) A test tube baby means :
Answer
fertilisation in vitro and then transplantation in the uterus.
1338) Why radiologists do not take direct X-ray photographs of intestine?
Answer
X-rays are not able to capture clear picture
1339) What is an antibiotic?
Answer
Asynthetic compound inhibiting the growth of bacteria
1340) Triple vaccine is administered to a new born child to immunize it against -
Answer
whooping cough, tetanus and diphtheria
1341) Antidiuretic hormone (ADH) -
Answer
causes the muscular walls of the arterioles to contract that simulates the reabsorption of water from the kidney tubules
1342) Exobiology deals with the study of -
Answer
life in other planets and space
1343) Heart attack occurs due to :
Answer
Lack of blood supply to the heart itself
1344) What is an endoscope?
Answer
It is an optical instrument used to see inside the alimentary canal
1345) Some viruses have RNA but no DNA. This would indicate that -
Answer
these viruses have no heritable information
1346) An antibiotic is -
Answer
a chemical synthesised by amicro-organism against another micro-organisms
1347) A clone is a colony of :
Answer
cells having similar genetic constitution
1348) The age of a tree can be determined more or less accurately by -
Answer
counting the number of rings in the trunk
1349) In the case of test tube babies
Answer
embryo is placed in uterus after 2 months.
1350) Quantity of fresh air required for a man is -
Answer
1000 cubic feet of air for every 20 minutes
1351) Dinosaurs were -
Answer
reptiles that became extinct
1352) What is the common in AIDS, mumps and poliomyelitis?
Answer
These are caused by viruses
1353) A 'breath test' used by traffic police to check drunken driving uses:
Answer
potassium dichromate-sulphuric acid
1354) According to Darwin's Theory of Evolution, long necks in giraffes -
Answer
arose because of constant attempt to reach leaves on tall trees, generation after generation
1355) Sugarcane plants are usually propagated by vegetative means because -
Answer
they do not produce seeds
1356) The term 'GM food' refers to the food -
Answer
that is genetically modified
1357) Why excessive heating and repeated use of cooking oil are most undesirable?
Answer
Carcinogenic substances like benzpyrene are produced
1358) Flat footed camels can walk easily in sandy deserts because -
Answer
pressure on the sand is decreased by increasing the area of the surface in contact
1359) A large number of identical plants can be obtained in a short span of time through -
Answer
tissue culture technique
1360) Full form of the infectious disease SARS is -
Answer
Severe Acute Respiratory Syndrome
1361) In test-tube babies, the -
Answer
Ovum is fertilized in the test-tubes and developed in uterus
1362) Human beings have two ears because two ears help -
Answer
to distinguish between two kinds of sounds arriving at the ears in opposite directions
1363) Cultivable land is defined as
Answer
total fallow lands + net sown area
1364) In bio fortification technique plant breeders use breeding to overcome -
Answer
Deficiencies of micronutrients and vitamins
1365) The five key indicators of global climate change of our planet are
Answer
Arctic Sea ice, Carbon dioxide, Global Temperature, Sea level and Land ice
1366) Green House Effect' means
Answer
Trapping of solar energy due to atmospheric gases
1367) The presence of air bubble in blood stream is dangerous to life because-
Answer
The flow of blood is obstructed
1368) In human body, ligaments are made up of
Answer
white fibres and some yellow elastic fibres
1369) People consuming alcohol in heavy quantities generally die of -
Answer
Cirrhosis
1370) Honey that has high concentration of sugar does not decay because
Answer
Bacteria cannot survive in an active state in a solution of high osmotic strength as water is drawn out
1371) What is‘Biodiversity?
Answer
Many types of flora & fauna in one forest
1372) In the grass lands, trees do not replace the grasses as a part of an ecological succession because of -
Answer
Water limits and fire
1373) What does the term Ebola stand for?
Answer
A viral disease outbreak in West Africa
1374) X-rays can be used
Answer
to detect defects in precious stones and diamonds.
1375) ‘Coralloid root’ of Cycas helps in -
Answer
Absorption of water and fixation of Nitrogen
1376) The non-living characteristic of viruses is –
Answer
ability to be crystallise
1377) What is silverfish?
Answer
A small silvery wingles insect
1378) A genetically engineered form of brinjal known as the BT brinjal has been developed. The objective of this is -
Answer
to make it pest resistant
1379) The cause of Heart attack is:
Answer
lack of blood supply to the heart
1380) Tachycardia is a condition characterized by
Answer
heart- rate increases from the normal
1381) Ecosystem consists of :
Answer
A biotic community and its non-living elements
1382) What are Lipids?
Answer
Cholesterol and trans fatty acids are types of Lipids
1383) Leaves of many grasses are capable of folding and unfolding because -
Answer
they have specialised bulliform cells
1384) Diamond does not conduct electricity, because -
Answer
No free electrons are present in it
1385) 'Gynecomastia' is -
Answer
Development of breasts in males
1386) Biofortifieation is a -
Answer
method of breeding crops to increase their nutritional value
1387) If a healthy freshwater fish is placed in salt water, what will be the expected consequence?
Answer
The fish becomes dehydrated and dies
1388) What causes the mottling of the dental enamel?
Answer
High levels of fluorides in the water
1389) Intensive cultivation refers to
Answer
raising production by intensive use of existing land
1390) In bio fortification technique plant breeders use breeding to overcome -
Answer
Deficiencies of micronutrients and vitamins
1391) Rotation of crops is essential -
Answer
For increasing fertility of the soil.
1392) What do you understand by the term Dark Fermentation'?
Answer
It is a method to produce Hydrogen as a fuel from waste water.
1393) What is the Kyoto Protocol?
Answer
It is an agreement among countries to take steps for reducing global warming