Answer to Question #106886 in Evolution for sanja

Question

f q = 0.3 and there are Hardy-Weinberg proportions, what is the most common genotype and what is its frequency? What is the least frequent genotype and its frequency?

Answer 1

If the frequency of allele q = 0.3, frequency of allele p = 1 - 0.3 = 0.7.

There are three possible genotypes. Their frequencies are:

qq = q² = 0.09

pp = p² = 0.49

2pq = 0.42

As a result, genotype pp (0.49) is the most common, while genotype qq (0.09) is at least frequent.