AIIMS2014Zoology-Population Genetics

AIIMS 2014 Zoology Population Genetics MCQ Question

Type: MCQ-conceptual-Medium-Class 12

At a particular locus, frequency of ‘A’ allele is 0.6 and that of ‘a’ is 0.4. What would be the frequency of heterozygotes in a randomly mating population of equilibrium?

A

0.16

B

0.36

C

0.48

D

0.24

Correct Answer

Option A

Detailed Explanation

The frequency of heterozygotes in a population at equilibrium can be calculated using the Hardy-Weinberg principle, which states that the frequency of heterozygotes (Aa) is given by 2pq, where p is the frequency of allele A and q is the frequency of allele a. In this case, p = 0.6 and q = 0.4, so 2pq = 2(0.6)(0.4) = 0.48, making the correct answer C.

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