Answer:
0.64
Explanation:
The frequency of an allele is a measure of the relative frequency of that allele on a genetic locus in a population expressed as a fraction or a percentage.
According to Hardy-Weinberg equation, p + q = 1 where p represents allele A and q represents allele a. If the frequency of allele a is 0.2.
Hence, 0.2 + p = 1; p = 1 - 0.2 = 0.8
Therefore, the frequency of allele A is 0.8
Genotype frequency of the homozygous genotype AA is represented by p^2 = (0.8)^2 = 0.64
