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NEET UG BIOLOGY MCQ: EVOLUTION
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A population containing a gene ‘X’ with two alleles ‘Aa’ is in Hardy-Weinberg equilibrium for gene ‘X’. If the gene frequency of allele ‘A’ is 0.2, allele frequency of ‘a’ is
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Correct option: C
0.8
Option C (0.8) is correct because in Hardy-Weinberg equilibrium, p + q = 1, where p is the frequency of allele A and q is the frequency of allele a. If p = 0.2, then q = 1 - 0.2 = 0.8.
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