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6290 Questions Page 96 of 252
2376
Assertion (A): "DNA Fingerprinting" has become a powerful tool to establish paternity and identity of criminals in rape and assault cases.
Reason (R): Trace evidences such as hairs, saliva and dried semen are adequate for DNA analysis.
UPSC Prelims 2000 General Science
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2377
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.
UPSC Prelims 2000 General Science
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2378
Within biological communities, some species are important in determining the ability of a large number of other species to persist in the community. Such species are called
UPSC Prelims 2000 Environment
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2379
Canola refers to special type of oil seed mustard varieties bred for human consumption. The main characteristic of these varieties is that the
UPSC Prelims 2000 General Science
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2380
Consider the following statements : Hard water is not suitable for
I. drinking.
II. washing cloths with soap.
III. use in boilers.
IV. irrigating crops.
Which of these statements are correct ?
UPSC Prelims 2000 General Science
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2381
The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by
UPSC Prelims 2000 General Science
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2382
Hybridoma technology is a new biotechnological approach for commercial production of
UPSC Prelims 2000 General Science
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2383
Insect-resistant cotton plants have been genetically engineered by inserting a gene from a/an
UPSC Prelims 2000 General Science
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2384
Match List I (Endocrine glands) with List II (Hormones secreted) and select the correct answer using the codes given below the Lists :

List I (Endocrine glands)List II (Hormones secreted)
(I) Gonads(A) Insulin
(II) Pituitary(B) Progesterone
(III) Pancreas(C) Growth hormones
(IV) Adrenal(D) Cortisone

Select the correct answer:
UPSC Prelims 2000 General Science
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2385
Phytotron is a facility to
UPSC Prelims 2000 General Science
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2386
The blood glucose level is commonly expressed as
UPSC Prelims 2000 General Science
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2387
Match List I (Diseases) with List II (Types of disease) and select the correct answer using the codes given below the Lists :

List I (Diseases)List II (Types of disease)
(I) Haemophilia(A) Deficiency disease
(II) Diabetes(B) Genetic disease
(III) Ringworm(C) Hormonal disorder
(D) Fungal infection

Select the correct answer:
UPSC Prelims 2000 General Science
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2388
At which stage in its life-cycle does the silkworm yield the fibre of commerce?
UPSC Prelims 2000 General Science
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2389
Which one of the following organisms can serve as a biofertiliser for rice crop?
UPSC Prelims 2000 General Science
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2390
Assertion (A): Large cold storage plants use ammonia as refrigerant while domestic refrigerators use chlorofluorocarbons.
Reason (R): Ammonia can be liquified at ambient temperatures at low pressures.
UPSC Prelims 2000 General Science
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2391
Match List I (Industrial processes) with List II (Industry with which associated) and select the correct answer using the codes given below the Lists :

List I (Industrial processes)List II (Industry with which associated)
(I) Cracking(A) Rubber
(II) Smelting(B) Petroleum
(III) Hydrogenation(C) Copper
(IV) Vulcanization(D) Edible fats

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UPSC Prelims 2000 General Science
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2392
A small pouch containing silica gel is often found in bottles of medicine in tablet or powder form because silica gel
UPSC Prelims 2000 General Science
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2393
Aluminium surfaces are often 'anodized'. This means the deposition of a layer of
UPSC Prelims 2000 General Science
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2394
Soft drinks such as colas contain significant quantities of
UPSC Prelims 2000 General Science
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2395
Which one of the following materials is very hard and very ductile ?
UPSC Prelims 2000 General Science
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2396
Match List I with List II and select the correct answer using the codes given below the Lists:

List IList II
(I) German Silver(A) Tin
(II) Solder(B) Nickel
(III) Bleaching Powder(C) Sodium
(IV) Hypo(D) Chlorine

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UPSC Prelims 2000 General Science
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2397
Most of the explosions in mines occur due to the mixing of
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2398
The stones formed in human kidney consist mostly of
UPSC Prelims 2000 General Science
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2399
Assertion (A): Small glass beads fixed on traffic signals glow brightly when light falls upon them.
Reason (R): Light is totally reflected when the angle of incidence exceeds a certain critical value and light travelling in a denser medium is reflected from a rarer medium.
UPSC Prelims 2000 General Science
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2400
Assertion (A): In a motion picture, usually 24 frames are projected every second over the whole length of the film.
Reason (R): An image formed on the retina of eye persists for about 0.1 s after the removal of stimulus.
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