1. Tardigrade
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  4. In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa, and the remaining 160 to aa. Based on this data, which of the following is the correct frequency of allele A in the population?

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Q. In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa, and the remaining 160 to aa. Based on this data, which of the following is the correct frequency of allele A in the population?

NTA AbhyasNTA Abhyas 2020

Solution:

According to Hardy $-$ Weinberg's principle:
$Frequenyofdominantalleleindividuals=AA=360/1000=0.36Frequencyofrecessivealleleindividuals=aa=160/1000=0.16Frequencyofheterozygous\left(\right.Aa\left.\right)individuals=480/1000=0.48Therefore:FrequencyofA=0.6Frequencyofa=0.4$
Frequency of dominant allele (A) = p = 0.6