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Question: Answered & Verified by Expert
In a population of 1000 individuals, 360 belong to genotype AA, 480 to $\mathrm{Aa}$ and the remaining 160 to aa. Based on this data, the frequency of allele $A$ in the population is
BiologyOrganisms and PopulationsAIIMSAIIMS 2018 (26 May)
Options:
  • A $0.4$
  • B $0.5$
  • C $0.6$
  • D $0.7$
Solution:
2588 Upvotes Verified Answer
The correct answer is: $0.6$
(c) : According to Hardy Weinberg principle
$\mathrm{p}^2+2 \mathrm{pq}+\mathrm{q}^2=1 ;(\mathrm{p}+\mathrm{q})^2=1$
(AA) $\mathrm{p}^2=360$ out of 1000 individuals or $\mathrm{p}^2=0.36$
Therefore, $\mathrm{p}=0.6$.

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