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NEET Biology Solved Question Paper 2016

Multiple Choice Questions

51.

Select the correct statements from the following regarding asexual reproduction.

I. It is slower than sexual reproduction.

II. It involve a single parent.

III. It produces progeny that are genetically identical with the parent.

IV. Clones are the progeny of asexual reproduction

I, II, III, IV
I, II, IV
I, II, III
II, III, IV

52.

Sushi is a highly prized delicacy prepared from the flesh of Japanese puffer fish.

But recently it is found to pose health risk to humans because.

tetrodotoxin (TTX) in its gonads block Na⁺ channels on axons
$α$ - bungarotoxin from the fish block acetylcholine receptors
toxins in its body block different types of voltage gated by Ca²⁺ channels
None of the above

53.

Given below are the set of statements describing the structural details of Purines (A) and Pyrimidines (BJ.

I. Nine - membered, double ring

II. Six - membered, single ring

III. Contains Nitrogen atoms at four positions

IV. Contains Nitrogen atoms at two positions

Segregate the statements I - IV into categories A and B and choose the correct option.

A B

I, IV II, III
Only I Only IV
Only II Only I
I, III II, IV

54.

Which type of RNA carries no coding message?

mRNA
tRNA
rRNA
tRNA and rRNA

55.
Parapatric speciation takes place when

a small segment of the original population becomes isolated reproductively

a part of the population becomes geographically isolated from the main population

a very different daughter species bud off from a semi- isolated peripheral population of ancestral species

a population of a species enters a new habitat

a population of a species enters a new habitat

Parapatric speciation separates adjacent population. It takes place when a population of a species enters a new niche or habitat. It occurs only at the edge of the parent species range. No physical, but gene flow does not occur due to the occupancy of new niche.

56.

Evolution of horses occured in

Holocene epoch
Miocene epoch
Palaeocene epoch
Eocene epoch

57.

Match the following columns and choose the correct option from the codes given below.

Column I (Cytokine)	Column II (Function)
A. Gamma infection ( $γ$ - IFN)	1. Stimulates T_H cells in the presence of antigens
B. Interlukin 1 (IL- 1)	2. Cytotoxic to tumour cells
C. Interlukin 2 (IL- 2)	3. Increase macrophage activity against tumour cells
D. Tumour necrosis factors beta (TNF- $β$ )	4. Involved in the proliferation of antigen- stimulated T_H cells

A - 1; B - 4; C - 3; D - 2
A - 4; B - 3; C - 2; D - 1
A - 3; B - 1; C - 4; D - 2
A - 2; B - 3; C - 1; D - 4

58.

Match the following columns and choose the correct option from the codes given below.

Column I (Terminology related to corals)	Column II (Explanation)
A. Corallite	1. Main constitutent of coral reef
B. Corallium	2. Central irregular skeleton mass of ridge
C. Hexacoralliaons	3. Skeleton of mass solitary coral
D. Columella	4. Skeleton of colonical coral

A - 1; B - 3; C - 2; D - 4
A - 2; B - 1; C - 4; D - 3
A - 3; B - 4; C - 1; D - 2
A - 4; B - 2; C - 3; D - 1

59.

Study the following Columns.

Column I	Column II
A. Hydrogen bond	1. Adenine - Deoxyribose
B. N - glycosidic linkage	2. Glucose - Fructose
C. Phosphodiester bond	3. Leucine - Glycine
D. Peptide bond	4. Nucleotide - Nucleotide in polynucleotide chain 5. Guanine cytosine on opposite strands of DNA.