The frequency of theB₁ allele (for an autosomal gene)in a population that is in Hardy-Weinberg equilibrium is 0.2 and the frequency of the B₂ allele is 0.8.The phenotype of allele B₁ is dominant to that of B₂.If females make up exactly half of the population,what is the frequency of the B₁ allele in the female population alone?

Question

Quizplus · Accepted Answer

Since the population is in Hardy-Weinberg equilibrium, the frequency of alleles does not change in each generation. Therefore, the frequency of the B₁ allele is still 0.2 in both males and females. The fact that females make up exactly half of the population does not affect the frequency of alleles. Thus, the frequency of the B₁ allele in the female population alone is also 0.2.

The Frequency of TheB₁ Allele (For an Autosomal Gene)in a Population