In a certain population,the frequency of a dominant allele is represented by p = 0.7,and the frequency of the recessive allele is represented by 0.3.What is the frequency of the heterozygous genotype?

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Quizplus · Accepted Answer

The frequency of the homozygous dominant genotype (AA) can be calculated as p^2 = (0.7)^2 = 0.49. 
The frequency of the homozygous recessive genotype (aa) can be calculated as q^2 = (0.3)^2 = 0.09. 
The frequency of the heterozygous genotype (Aa) can be calculated as 2pq = 2(0.7)(0.3) = 0.42. Therefore, the answer is C) 0.42.

In a Certain Population,the Frequency of a Dominant Allele Is