When calculating the allele frequency of allele A in a population, why do you multiply the frequency of individuals who are homozygous for A by 2?
A)Because if A is dominant, it will show up twice as much.
B)Because each individual who is homozygous for A has two copies of the allele.
C)Because there are always twice as many homozygous individuals as heterozygous individuals.
D)Because individuals homozygous for A will produce twice as many offspring.
E)Because individuals homozygous for A will be twice as likely to survive.

Question

Quizplus · Accepted Answer

Homozygous individuals have two copies of the same allele. Therefore, when calculating allele frequency, multiplying the frequency of homozygous individuals by 2 accounts for both copies of the allele.

When Calculating the Allele Frequency of Allele a in a Population