Biology 201 to 340 Qts & Ans
201. Malaria fever is caused
a) Immediately after mosquito bite
b) Upon disintegration and bursting of red blood cells
c) When the malaria causing germs reach the liver
d) Upon release of toxins into blood
Ans: d
202. Pyrilla is a
a) Disease of teeth and gums
b) An insect pest
c) A character of ancient Greek mythology
d) A building heated by solar energy
Ans: b
203. The most poisonous snakes found in India are
a) Cobra, viper, Banded kraits
b) King Cobra, Grass snake, Banded kraits, Cobra
c) Cobra, python, Banded kraits, Rat snake
d) Cobra, Grass snake, kraits, Rat snake
Ans: a
204. Match List I with List II and select the correct answer using the codes given below them:
List I : List II
Branches of Science : Details of study
A. Taxonomy : 1. Functional movements
B. Mycology : 2. Classification
C. Morphology : 3. Shape and structure
D. Physiology : 4. Fungus
Select the correct answer from the codes given below:
A B C D
a) 1 2 3 4
b) 2 4 3 1
c) 2 3 1 4
d) 3 4 2 1
Ans: b
(1992)
205. Which one of the following plants can fix nitrogen from air?
a) Rice
b) Wheat
c) Pea
d) Maize
Ans: c
206. Chlorophyll is a naturally occurring chelated compound in which central metal is
a) Magnesium
b) Copper
c) Calcium
d) Iron
Ans: a
207. Match List I with List II and select the correct answer using the codes given below them
List I : List II
A. Islets of Langerhans : 1. Calcitonin
B. Pituitary gland : 2. Epinephrine
C. Thyroid gland : 3. Growth hormone
D. Adrenal gland : 4. Insulin
Select the correct answer from the codes given below
A B C D
a) 4 3 2 1
b) 4 3 1 2
c) 3 4 1 2
d) 3 2 4 1
Ans: b
208. Two richest known sources of edible protein are
a) Meat and eggs
b) Some algae and other micro organisms
c) Soya bean and groundnut
d) Milk and leafy vegetables
Ans: a
209. The bats are able to fly in dark since their wings produce
a) Infra-red rays
b) Ultrasonic waves
c) Sound waves
d) Ultraviolet rays
Ans: b
210. Which of the following diseases is causes due to defective genes?
a) Ulcer
b) Haemophilia
c) Diabetes
d) Cancer
Ans: b
211. Consider the Food pyramid given below showing the interdependence of plants and animals is the food chain
Which one of the following in the pyramid is most chain?
a) Herbivore
b) Plant
c) Top Carnivore
d) Small Carnivore
Ans: c
212. Consider the figure given below:
Calories
4000, 3000, 2000, 1000 0
The above figure contains, calories required per day by boys and girls. It can be inferred from
the graph that is general caloria requirment for boys and girls
a) Reches a peak value at about the same age
b) Increase nearly at he same rate till the age of 13
c) Is quite different at all ages
d) Is similar till the age of 17
Ans: b
213. Man cannot digest cellulose whereas cows can do so because
a) Their gut contains certain bacteria capable of digesting celluose
b) They have a many- chambered stomach
c) They have effcient grinding molars
d) Thye produce an enzyme cellulse which can digest cellulose
Ans: a
214. Camel uses its hump for
a) Storing water
b) Storing fat
c) balancing the body during walking in desert sand
d) temperature regulation
Ans: b
215. The theory of ‘Jumping genes’ was propounded by
a) Gregor Johann Mendel
b) Thomas Hunt Morgan
c) Barbara MC Clintock
d) Watson and Crick
Ans: c
216. Sucrose content in sugarcane decreases
a) if high rainfall occurs during the period of growth of the plant
b) if frost occurs during the period of ripening
c) if there is fluctuation in temperature during the period of growth of the plant
d) if there is high temperature during the time of ripening
Ans: d
217. Which one of the folloiwng is a “man made” cereal NOT found in nature?
a) Dwarf wheat
b) Hy brid maize
c) Triticale
d) Soya bean
Ans: c
218. Sugarcane, sugarbeet, sweet pea, chickpea, pigeonpea and French bean belong to
a) two plnat families
b) three plant families
c) four plant families
d) nice plant families
Ans: b
219. A fertile – soil, suitable for growing common crops, is likely to have a PH value of
a) three
b) four
c) six to seven
d) nine to ten
Ans: c
220. Posion glands of snakes are homologous to
a) electrci organs of fishes
b) stings of rays
c) sebaceous glands of mammals
d) salivary glands of vertebrates
Ans: d
221. Match List I with List II and select the correct answer using the codes given below them
List I : List II
( characteristics) : (Animal)
A. Wingless insect : 1. Kiwi
B. Flightless Bird : 2. Silver fish
C. Limbless reptile : 3. Octopus
D. Limbless animal : 4. Snake
Codes:
A B C D
a) 1 3 2 5
b) 2 1 4 5
c) 2 1 3 4
d) 3 1 4 2
Ans: b
222. Three Communicable disease prevalent in developing countries caused by unsafe drinking water an bad sanitation are
a) acute diarrhea, cancer and gout
b) malaria, acute diarrhea and schistosomiasis
c) onchocericiasis, leukemia and arthritis
d) rheumatism, malaria and AIDS
Ans: b
(1994)
223. The heart of human embryo starts beating
a) in the first week of its development
b) in the third week of its development
c) in the fourth week of its development
d) in the sixth week of its development
Ans: b
224. If father has blood group A and mother has blood group O, then which one of the following blood group may be found in their son?
a) B
b) AB
c) O
d) B, AB, or O
Ans: c
225. Match List I with List II and select the correct answer from the codes given below the lists:
List I : List II
(Crops) : (Crop pests)
a) Rice : 1. Aphid
b) Wheat : 2. Gundhi bug
c) Sugarcane : 3. Greasy cutworm
d) Gram : 4. Top shoot borer moth
: 5. Bollworm
Codes:
A B C D
a) 2 3 4 5
b) 3 1 2 4
c) 2 1 4 3
d) 5 4 1 3
Ans: c
226. In the case of a Test – tube baby’
a) fertilization takes place inside the test –tube
b) development of the baby taken place inside the test –tube
c) fertilization takes place outside the mother’s body
d) unfertilized egg develops inside the test –tube
Ans: c
227. What is the correct sequence of the following in a heart attack?
1) Narrowing of the inner orifice of the vessel
2) ‘plaque’ from fibrous tissues and high cholesterol
3) Inadequate supply of blood and oxygen
4) Clots of blood carried in to the coronary arteries.
Choose the answer from the codes given below:
a) 1, 2, 3, 4
b) 2, 4, 1, 3
c) 2, 3, 1, 4
d) 4, 2, 1, 3
Ans: b
228. Which of the following are characteristics shown by a breast – fed baby was when compared to a bottle –fed baby?
1) It is less obese.
2) It shows greater capacity, to resist diseases.
3) It gets more vitamins and proteins
4) Its growth in height is abnormal.
Select the correct answer from the codes given below:
a) 1, 2 and 3
b) 1, 2 and 4
c) 1, 3 and 4
d) 2, 3 and 4
Ans: a
229. Which of the following is/are used as bio fertilizers?
a) Azolla
b) Blue – green algae
c) Alfalfa.
Select the correct answer from the codes given below
a) 2 alone
b) 1 and 2c) 1 and 3
d) 1, 2 and 3
Ans: d
230. Even though an animal is fed with carboydraterich diet, its blood sugar concentration tends to remain constant. This is on account of the fct that in the case of an animal
a) hormones of pituitary glands control metabolic process
b) hormones of pancreas cause such a condition
c) blood sugar is readily absorbed by liver
d) glucose undergoes autolysis
Ans: b
231. Which one of the following crops enriches the nitrogen content in soil?
total protein food (both superior and inferior) should be in order of
a) Potato
b) Sorghum
c) Sunflower
d) Pea
Ans: d
232. In the balanced dietaries for a day of an adult working man, weights of carbohydrate food and total protein food
(both superior and inferior) should be in order of
a) 600 gm and 420 gm respectively
b) 600 gm and 600 gm respectively
c) 420 gm and 600 gm respectively
d) 420 gm and 420 gm respectively
Ans: c
233. Which one of the following is caused by the expression of a recessive gene present on sex chromosome?
a) Rheumatism
b) Nervous shock
c) Muscular dystrophy
d) Cerebral hemorrhage
Ans: c
234. Which one of the following animals do not stores water in the intestine?
a) Moloch
b) Camel
c) Zebra
d) Uromastix
Ans: b
235. The only anthropoid ape to be found in India is the
a) hanuman monkey
b) lion tailed macaque of Western Ghats
c) slow Loris of Assam
d) white browned gibbon of Assam
Ans: d
236. The highest milk producing breed of goat in India is
a) Barbari
b) Jamunapari
c) Black Bengal
d) Beetal
Ans: b
237. Assertion (A) : A lock of Einstein’s hair, if scientists could locate it and extract its DNA, could help in producing another Einstein, by cloning.
Reason ( R) : The DNA extracted from the cell of an embryo at an early stage of development, can be transferred to individual eggs which in turn can be implants into the uterus of a surrogate mother to give birth to an identical off spring
a) Both A and R are true, and R is the correct explanation of A
b) Both A and R are True, but R is not correct explanation of A
c) A is true, but R is false
d) A is false, but R is true
Ans: a
238. Which one of the following vitamins is considered to be a hormone?
a) A
b) B
c) C
d) D
Ans: d
239. Renin and lactase, the enzymes required to digest milk, disappear in the human body by the age of
a) two
b) three
c) five
d) eight
Ans: d
240. Haemoglobin is dissolved fish in the bred exclusively the cold regions of India?
a) frog
b) fish
c) man
d) earthworm
Ans: d
241. Which of the following fish are bred exclusively in the cold regions of Inida?
1) Catla
2) Tinca
3) Bhekti
4) Trout
Choose the correct answer from the codes given below:
a) 1 and 4
b) 1, 2 and 4
c) 2 and 4
d) 3 and 4
Ans: b
242. Phenylketonuria is an example of an in – born error of metabolism. This “error” refers to
a) hormonal overproduction
b) atrophy of endocrine glands
c) inherited lack of an enzyme
d) non -disjunction
Ans: c
(1995)
243. Which one of the following sets is correctly matched?
a. Diptheria, pneumonia and Leprosy : Hereditary
b. AIDS, Syphilips and Gonorrhoea : Bacterial
c. Colour blindness, Hemophilia and : Sex linked
Sickle cell anenmia
d. Polio, japanse B encephalitis and : Viral
Plague
Ans: c
244. A person with ‘AB’ blood group is sometimes called a universal recipient because of the
a) lack of antigen in his blood
b) lack of antibodies in his blood
c) lack of both antigens and antibodies in his blood
d) presence of antibodies in his blood
Ans: b
245. Which one of the following is a membrane that protects the developing embryo from desiccation?
a) Amnion
b) Allantois
c) Chorion
d) Yolk sac
Ans: a
246. Which one of the following antimicrobial drugs is suitable for treatment of both tuberculosis and leprosy?
a) Isoniazid
b) p-aminosalicylic acid
c) Streptomycin
d) Rifampicin
Ans: d
247. Most of the desert plants bloom during night time because
a) their blooming controlled by low temperature
b) they are sensitive to the phases of moon
c) the desert insects eat away flowers during day time
d) the desert insects are active during night time
Ans: a
248. The only snake that buildings a nest is
a) chain viper
b) King Cobra
c) Krait
d) Saw – scaled viper
Ans: b
249. Which of the following elements are present in all proteins?
1. Carbon
2. Hydrogen
3. Oxygen
4. Nitrogen
Which one of the following hormone contains iodine?
a) 2 and 3
b) 1, 2 and 4
c) 1, 3 and 4
d) 1, 2, 3 and 4
Ans: d
250. Which one of the following hormone contains iodine?
a) Thyroxin
b) Testosterone
c) Insulin
d) Adrenaline
Ans: a
251. “By weaving threads of physics, chemistry and biology into a rich tapestry, this remarkable scientist provided a unifying molecular view of the world
He toutd the wonderful properties of Vitamin C first as cure of common cold and later as a preventive agent against cancer. “One of science’s major figures of all time refers to above is
a) G. N Lewis
b) Linus Carl pauling
c) Fritz London
d) Walter Heitler
Ans: c
252. “ It begins as a single cell and grows into a merciless disease that cliams millions of livers year after year. But scientists are steadily unlocking its mysteries, and the fight against it may now have reached a dramatic turning point. New discoveries promise better therapies and hope in the wat against….” -The disease referred to in the above quotation is
a) Cancer
b) AIDS
c) Tuberculosis
d) ALZheimer’s disease
Ans: a
253. The normal temperature of human body on the Kelvin scale is
a) 280
b) 290
c) 300
d) 310
Ans: d
(1996)
254. According to the World Health Organization, the disease which causes the death of the largest number of people today is
a) AIDS
b) Tuber culosis
c) Malaria
d) Ebola
Ans: a
255. Which one of the following is a modified stem?
a) Carrot
b) Sweet potato
c) Coconut
d) Potato
Ans: d
256. Fat present below the skin surface in our body, acts as barrier against
a) loss of heat from the body
b) loss of essential body fluids
c) loss of salts from the body
d) entry of harmful micro –organism from the environment
Ans: a
257. Which of the following professional (s) are more likely to run risk of a permanent change in their cell’s DNA?
1. Researchers using carbon – 14 isotope
2. X-ray technician
3. Coal miner
4. Dyer and painter
Select the correct Answer by using the codes given below:
a) 2 alone
b) 1 and 2
c) 1, 2 and 4
d) 1, 3 and 4
Ans: b
258. Which one of the following is not essential micronutrient for plants?
a) Boron
b) Zinc
c) Sodium
d) Copper
Ans: d
259. Of the four landmarks in medical history given below, which one was the first take place?
a) Organs transplant
b) Bypass surgery
c) Test –tube baby
d) Plastic surgery
Ans: d
260. The nutritional deficiency condition that needs to be given top priority for remedial action in India today is
a) Scurvy
b) Rickest
c) Xerophthalmia
d) Pellagra
Ans: b
261. Living organism require at least 27 elements of which 15 are metals. Among these, those required in major quantities include
a) Potassium, Manganese, Molybdenum & Calcium
b) Potassium, Molybdenum, Copper & Calcium
c) Potassium, Soduim, Magnesium & Calcium
d) Sodium, Magnesium, Copper & Manganese
Ans: c
262. Match List I with List II and select the correct answer from the codes given below the lists:
List I : List II
a) Vitamin : 1.Pepsin
b) Enzyme :2. Carotene
c) Hormone : 3. Keratin
d) Protein : 4. progesterone
Codes:
A B C D
a) 1 2 3 4
b) 2 1 4 3
c) 2 1 3 4
d) 1 2 4 3
Ans: b
263. Physico – chemical characteristics of water in water sources undergo changes due to
a) aquatic macrophysics
b) aquatic fungi
c) effluents
d) evapotranspiration
Ans: c
264. Ecologists have so far know, found and certified a large number of species in the plant and animal kingdom.
In terms of members, the largest found and identified so far are from among the
a) Fungi
b) Plants
c) Insects
d) Bacteria
Ans: d
265. It is possible to produce seedless tomato fruits by
a) applying trace elements in tomato fields
b) spraying mineral solution on plants
c) spraying hormones on flowers
d) applying fertilizers containing radioactive
Ans: c
266. Which of the following are associated with diabetes mellitus, a common disease in adults?
1. Higher sugar level in blood
2. Lower sugar level in blood
3. Lower insulin level in blood
4. Higher insulin level in blood
Select the correct Answer by using the codes given below:
a) 2 and 4
b) 1 and 2
c) 2 and 3
d) 1 and 3
Ans: d
267. Consider the following statements:
AIDS is transmitted
1. by sexual intercourse.
2. by blood transfusion.
3. by mosquitoes and other blood sucking insects
4. across the placenta.
Of these statements:
a) 1, 2 and 3 are correct
b) 1, 2 and 4are correct
c) 1, 3 and 4 are correct
d) 1 and 3 are correct
Ans: b
268. People drinking water from shallow hand pump are likely to suffer from all the following diseases except
a) Chleora
b) Typhiod
c) Jaundice
d) Flurosis
Ans: c
269. Which of the following would lead to ‘malnutrition”?
1. Over nutrition
2. Under nutrition
3. Imbalanced nutrition
Select the correct Answer 2Y using the codes given below:
a) 2 alone
b) 2 and 3
c) 1 and 3
d) 1, 2 and 3
Ans: d
270. Besides protein and carbohydrates, other elements of nutritional value found in milk include
a) Calcium, potassium and iron
b) Calcium and potassium
c) Potassium and iron
d) Calcium and iron
Ans: b
271. Match List I (physiological processes) with List II (Cell organelles) and select the correct Answer by using from the codes given below the lists:
List I : List II
a) Photosynthesis : 1. Plasma Membrance
b) Minerals uptake : 2. Chloroplast
c) Respiration : 3. Motochondaria
d) Protein Synthesis : 4. Ribosmoes
Codes:
A B C D
a) 1 2 3 4
b) 1 2 4 3
c) 2 1 3 4
d) 2 1 4 3
Ans: c
( 1997)
272. The characteristic odour of garlic is due to
a) a chloro compound
b) a sulphur compound
c) a fluorine compound
d) acetic acid
Ans: b
273. Which one of the following techniques can be used to establish the paternity of a child?
a) Protein analysis
b) Chromosome counting
c) Quantitative analysis of DNA
d) DNA finger – printing
Ans: d
274. Which one of the following is an active component of oil of clove?
a) Menthol
b) Eugenol
c) Methanol
d) Benzaldehyde
Ans: b
275. The pituitary gland by virtue of its tropic hormones controls the secretory activity of other endocrine glands,.
Which one of the following endocrine glands can function indecent of the pituitary gland?
a) Thyriod
b) Gonads
c) Adrenals
d) Parathyriod
Ans: d
276. Oxygen transpiration in a human body takes place through
1. Blood
2. Lungs
3. Tissue
The correct sequence of transportation is
a) 1, 2, 3
b) 3, 1, 2
c) 2, 1, 3
d) 1, 3, 2
Ans: c
277. Corpus Iuteum is a mass of cells found in
a) brain
b) ovary
c) pancreas
d) spleen
Ans: b
278. Which one of the organisms is likely to show highest – concentration of DDT once it has been introduced into the ecosystem?
a) Grasshopper
b) Toad
c) Snake
d) Cattle
Ans: c
279. Alpha – keratin is protein present in
a) blood
b) skin
c) wool
d) eggs
Ans: c
280. Which one of the following is cultivated by transplanting seedlings?
a) Maize
b) Sorghum
c) Onion
d) Soyabean
Ans: c
281. What is the average fat content of buffalo milk?
a) 7.2 %
b) 4. 5 %
c) 9. 0 %
d) 10.0 %
Ans: c
282. The major component of honey is
a) glucose
b) sucrose
c) maltose
d) fructose
Ans: d
283. Arteirs supplying blood to he heart are called
a) carotid arteries
b) hepatic arteries
c) coronary arteries
d) pulmonary arteries
Ans: c
284. Recommended daily intake of proteins for a moderately active woman is
a) 30 g
b) 37 g
c) 40 g
d) 46 g
Ans: d
285. Match List I with List II and select the correct answer by using from the codes given below the lists:
List I : List II
a) Malaria : 1. Bone marrow
b) Filaria : 2. Brain
c) Encephalitis : 3. Muscle
d) Leukaemia : 4. Lymph node
: 5. Blood Cells
Codes:
A B C D
a) 5 3 2 1
b) 5 4 2 1
c) 4 3 5 1
d) 5 4 1 2
Ans: b
286. Antigen is a substance which
a) lowers body temperature
b) destroys harmful bacteria
c) triggers the immune system
d) is used as an antidote to poison
Ans: c
( 2000)
287. At which stage in its life – cycle does the silk worm yield the fiber of commerce?
a) Egg
b) Larva
c) Pupa
d) Imago
Ans: c
288. Match List I (Diseases) with List II ( Typeand select the correct answer from the codes given below the lists:
List I : List II
a) Haemophilia : 1. Deficiency disease
b) Dia betes : 2. Genatic
c) Rickets : 3. Hormonal disoder
d Ringworm : 4. Fungal infection
Codes:
A B C D
a) 2 3 4 1
b) 2 3 1 4
c) 3 2 1 4
d) 3 2 4 1
Ans: b
289. The blood glucose is commonly expressed as
a) mm of Hg
b) millimoles per liter
c) Parts per million
d) grams per liter
Ans: b
290. Phototonus is a facility to
a) grow plants under disease –free conditions
b) conserve endangered species of plants
c) grow plants under controlled condition
d) induce mutations
Ans: c
291. Match List (Endocrine glands) with List II (Hormones secreted)
and select the correct answer using the codes given below the Lists:
List I : List II
a) Gonads : 1. Insulin
b) Pituitary : 2. Progesterone
c) Pancreas : 3. Growth hoemones
d) Adrenal : Cortisone
Codes:
A B C D
a) 3 2 4 1
b) 2 3 4 1
c) 2 3 1 4
d) 3 2 1 4
Ans: c
292. The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by
a) a decrease in the supply of oxygen
b) minor wear and tear of muscle fibers
c) the depletion of glucose
d) the accumulation of lactic acid
Ans: d
293. Assertion (A) : In human beings, the females play a major role in determining the sex of the offspring.
Reason ( R) : Women have two – ‘X’ chromosomes.
a) Both A and R are true, and R is not a the correct explanation of A
b) Bothe A and R true, but R is not a correct explanation of A
c) A is true, but R is false
d) A is false, but R is true
Ans: d
294. Assertion (A): “DNA Finger –printing” has become a powerfull tool to establish paternity and identity of criminals in rape and assault cases.
Reason ( R) : Trace evidences such as hairs, saliv and dried semen are adequate for DNA analysis.
a) Both A and R are true, and R is not a the correct explanation of A
b) Both A and R are true, and R is not a the correct explanation of A
c) A is true, but R is false
d) A is false, but R is true
Ans: a
( 2001)
295. Which of the following organelles play the most significant role in protein synthesis?
a) Lysosome and Centrosome
b) Endoplasmic reticulum and Ribosome
c) Golgi apparatus and Mitochondria
d) Lysosome and Mitochondria
Ans: b
296. Assertion (A) Scientists can cut apart and paste together DNA molecules at will, regadless of the source of the molecules.
Reason (R) : DNA fragments can be manipulated using restriction endonucleases and DNA ligases.
a) Both A and R are individually true and R is the a correct explanation of A
b) Both A and R are individually true and R is NOT a correct explanation of A
c) A is true, but R is false
d) A is false, but R is true
Ans: a
297. The cellar and molecular control of programmed cell death is known as
a) Apoptosis
b) Ageing
c) Degeneration
d) Necrosis
Ans: a
298. Which organelles in the cell, other than nucleus, contains DNA?
a) Centriole
b) Glogi apparatus
c) Lysosome
d) Mitochondrion
Ans: d
299. Epiphytes are plants which depend on other plants for
a) Food
b) mechanical support
c) Shade
d) Water
Ans: b
300. Antigen is a substance which
a) destroys harmful bacteria
b) is used to treat poisoning
c) lowers body – temperature
d) stimulates formation of antibody
Ans: d
301. Which of the following features of DNA makes it uniquely suited to store and transmit genetic information from generation to generation?
a) Complemtarity of the two stands
b) Double helix
c) Number of base –pairs per turn
d) Sugar – phosphate backbone
Ans: a
302. The American multinational company, Monsanto has produced an insect – resistand cotton variety that is undergoing field – trails in India.
A toxin gene from which ONE of the following bacteria has been transferred to his transgenic cotton
a) Bacillus subtills
b) Bacillus thurigiensis
c) Bacillius amyliquifanciens
d) Bacillus globlii
Ans: b
303. Match List with List II and select the correct answer using the codes given below the Lists:
List I (Bone) : List II (Name)
A. Breast –bone : 1. Clavicle
B. Collar – bone : 2. Patella
C. Knee –cap : 3. Scapula
D. Shoulder blade : 4. Sternum
Codes:
A B C D
a) 4 1 3 2
b) 1 4 3 2
c) 1 4 2 3
d) 4 1 2 3
Ans: d
304. Consider the following statements:
1. Tapeworm is a hermaphrodite.
2. Round – worm has separate sexes.
3. Filarial is caused by a nematode.
4. Guinea – worm is an annelid.
Which of these are correct?
a) 1 and 2
b) 1, 2 and 3
c) 3 and 4
d) 2, 3 and 4
Ans: b
305. Match List with List II and select the correct answer using the codes given below the Lists
List I : List II
(Achievement in genetic) : (Scientists)
A. Discovery of tramsdication and : 1. Khurana
Conjugation in bacteria
B. Establishing the Sex –linked : 2. Kornberg
inheritance
C. Isolation of DNA polymerase : 3. Lederberg
form E. coli
D. Establishing the complete genetic : 4. Morgan
Code : 5. Ochoa
Codes :
A B C D
a) 4 3 2 1
b) 3 4 1 5
c) 4 3 1 5
d) 3 4 2 1
Ans: d
306. “Athlete’s Foot” is a disease caused by
a) Bacteria
b) Fungus
c) Protozoan
d) Nematode
Ans: b
307. In the eye donation, which part of the eye is transplanted from the donor?
a) Cornea
b) Lens
c) Retina
d) The whole eye
Ans: a
308. A man whose blood group is not known meets with as serious accident and needs blood transfusion immediately.
Which one of the blood groups mentioned below and readily in the hospital will be safe for transfusion?
a) O, Rh -
b) O, Rh +
c) AB, Rh -
d) AB, Rh +
Ans: a
309. “Metastasis” is the process by which
a) Cells divide rapidly under the influence of drugs
b) Cancer cells spread through the blood or lymphatic system to other sites or organs
c) the chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles
d) cancer cells are successfully inhibited to divide any further.
Ans: b
310. Match List with List II and select the correct answer using the codes given below the Lists
List I : List II
(Substance) : (physiological role)
A. Ptyalin : 1. Converts angoiten – sinogen in blood into angiotensin
B. Pepsin : 2. Digests starch
C. Renin : 3. Digetst protiens
D. Oxytocin : 4. Hydrolyses fats
: 5. Induces contraction of smooth muscles
Codes:
A B C D
a) 2 3 1 5
b) 3 4 2 5
c) 2 3 5 1
d) 3 1 2 4
Ans: a
(2002)
311. Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
a) Isolation
b) Mutation
c) Natural Selection
d) Sexual Reproduction
Ans: b
312. Ticks and mites are actually
a) Arachnids
b) Crustaceans
c) Insects
d) Myriads
Ans: a
313. With references to the blood in a normal person, which one of the following statements is correct?
a) Compared to arteries, veins are less numerous and hold less of the body’s at any given time.
b) Blood cells constitutute about 70 per cent of the total volume of the blood
c) White Blood Cells (WBC) are made by lymph nodes only
d) The blood has more platelets than WBC
Ans: d
314. Consider the following plants:
a) Bougainvillea
b) Carnations
c) Cocoa
d) Grapes
Ans: d
315. In the context of the organic evolution, the loss of limbs of snakes is explained by the phenomenon of
a) use and disuse of organs
b) adaptation to living burrows
c) natural selection
d) inheritance of acquired characters
Ans: a
316. When one gene controls two or more different characters simultaneously, the phenomenon is called
a) A pomixis
b) Pleitrophy
c) Polyploidy
d) Ployteny
Ans: b
317. With reference to the human body consider the following statements:
a) The production of somatotropin goes up when a person exercises
b) Men’s tests produce progesterone
c) Women’s adrenal glands secrete testosterone
d) Stress cause the adrenals to release very less amount of cortisol than usual
Which of these statements are correct?
A. 2 4 3 1
B. 1 3 2
C. 2 3 4
D. 1 4
Ans: d
318. Which one of the following is monogamous?
a) Wolf
b) Walrus
c) Seal
d) Deer
Ans: a
319. In a bisexual flower, if androecium and gynoecium mature at different times, the phenomenon is known as
a) Dichogamy
b) Herkogamy
c) Hetrogamy
d) Monogamy
Ans: b
320. Foot – and – Mouth disease in animals, a current epidemic in some parts of the world, is caused by
a) Bacterium
b) Fungus
c) Protozoan
d) Virus
Ans: d
321. Which one of the following statements is correct?
a) All echinoderms are viviparous
b) Round worm has no circulatory system
c) In bony fishes, swim bladder is usually present
d) In cartilaginous fishes, fertilisation is internal?
Ans: c
322. Which one of the following statements is correct?
a) Prions are the smallest free –living cells
b) The cell wall of Mycoplasmas I made up of amino sugars
c) Viroid’s consist of a single –stranded RNA molecule
d) Rickettsias lack cell wall
Ans: c
323. Assertion (A) : Drinking of whisky increase the frequency of urination.
Reason ( R) : Alcohol intake speeds up the secretion of vasopressin in the body.
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but is not a correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: a
324. Assertion (A): Human diet should compulsorily contain Glycine, Serine and Tyrosine:
Reason ( R) : Essential amino acids cannot be synthesised in the human body.
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true and R is the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: d
(2003)
325. With reference to normal human beings, consider the following statements:
1. In response to the presence of HCL. Secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of these statements is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
Ans: c
326. With reference to the work human kidney consider the following statements:
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery
2. From Bowman’s capsule., the filtered liquid passes through tiny tubes where much of the glucose
is reabsorbed and sent back to the blood in th e renal vein.
Which of these statements is/are correct?
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor
Ans: c
327. Consider the following statements:
1. Molasses is a by – product of sugar production processes
2. Bagasse obtained in the sugar mills is used as fuel in the boilers to generate steam for the sugar factories
3. Sugar can only be produced from sugarcane as the raw material.
Which of these statements is/are correct?
a) 1 and 2
b) 2 and 3
c) 1 and 3
d) 1,2 and 3
Ans: a
328. Octopus is:
a) an arthropod
b) an echinoderm
c) a hemichordate
d) a mollusc
Ans: d
329. Consider the following conditions of a sick human body:
1. Swollen Iymph nodes
2. Sweaitng at night
3. Loss of memory
4. Loss of weight
Which of these are the symptoms of AIDS?
a) 1 and 2
b) 2, 3 and 4
c) 1, 3 and 4
d) 1, 2, 3 and 4
Ans: d
330. Consider the following statements:
1. The common blue green algae Spirogyra and Ulothrix are found in both fresh water ponds and oceans.
2. The chameleon can look ahead with one eye, and at the same time look behind with another.
a) Only 1
b) Only 2
c) Both 1 and 2
d) Neither 1 nor 2
Ans: b
331. Which one of the following statements is not correct?
a) Milk contains none of the B- vitamins
b) Vitamins –A (retinal) deficiency leads to dry and scaly skin
c) One of the symptoms of scurvy is pain in the joints
d) Vitamin BI (thiamine) deficiency can lead to heart failure
Ans: a
(2004)
332. Consider the following statements:
a) Non- function of lachrymal gland is an important symptom of deficiency of Vitamin A.
b) Deficiency of vitamin BI can lead to indigestion and heart enlargement
c) Vitamin C deficiency can lead to pain in the muscles.
d) Deficiency of vitamin D causes increased loss of Ca++ in urine.
Which of these statements given above is/are correct?
a) 1 and 2
b) 2 ,3 and 4
c) 1,3 and 4
d) 1,2,3 and 4
Ans: c
333. The hormone insulin is a:
a) Glycolipid
b) Fatty acid
c) Peptide
d) Sterol
Ans: c
334. In which organ of the human body are the Iymphocyte cells formed?
a) Liver
b) Long bone
c) Pancreas
d) Spleen
Direction: The following question consists of two statements: one labelled as the ‘Assertion (A)’ and
the other as ‘Reason (R) ’. You are to examine these two statements carefully and select the answers to these items using the codes given below:
Codes:
a) Both A and R are individually true and R is the correct explanation of
b) Both A and R are individually true and R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: b
335. Assertion (A): Fatty acids should be a part of the balanced human diet.
Reason ( R) : The cells of the human body cannot synthesize any fatty acids.
Ans: a
336. Consider the following statements:
1. Femur is the longest bone in the human body.
2. Cholera is a disease caused by bacteria.
3. ‘Athlete’s foot’ is a disease caused by virus.
Which of these statements given above is/are correct?
a) 1 and 2
b) 2 and 4
c) 1 and 3
d) 1,2, and 3
Ans: c
337. Pneumoconiosis afflicts the workers who work mainly in
a) Tanneries
b) Coal mining industry
c) Distilleries
d) Galss industry
Direction: The following question consit of two statemnts, one labeled as the ‘Assertion (A)’ and the other as 'Reason ( R) You are to examine these two statements carefully and select the answer to these items using the codes given below:
a) Both A and R are individually true and R is the correct explanation of
b) Both A and R are individually true and R is the correct explanation of A
c) A is true but R is false
d) A is false but R is tru
Ans: b
338. Assertion (A) : All the protiens in our food are digested in small instenise only.
Reason ( R) : The protein –digesting enzymes from pancreas are released in to small intestine.
Direction: The following question consist of two statements, one labeled as the ‘Assertion (A)’ and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answer to these items using the codes given below
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but and R is the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: d
339. Assertion (A): Amoeba reproduces by fission.
Reason (R) : All unicellular organism reproduce by asexual methods.
Direction: The following question consist of two statements, one labeled as the ‘Assertion (A)’ and the other as ‘Reason (R) ‘ you are to examine these to statements carefully and select the answer to these items using the codes given below
a) Both A and R are individually true and R is the correct explanation of A
b) Both A and R are individually true but R is not the correct explanation of A
c) A is true but R is false
d) A is false but R is true
Ans: c
340. Assertion (A): The person with diabetes insipidus feels thirsty.
Reason ( R) : A person with diabetes insipidus suffers from excess secretion of vasopressin.
Ans: c