Suppose variants at a single locus affect wing length in a species of crickets, with homozygotes for the L allele having long wings, homozygotes for the l allele having short wings, and heterozygotes having wings of intermediate length.In one population of 600 individuals, 400 have long wings, 160 have intermediate-length wings, and 40 have short wings.What is the frequency of the L allele?
A) 0.2
B) 0.35
C) 0.7
D) 0.8
E) 0.96

Question

Quizplus · Accepted Answer

First, we can calculate the frequency of the l allele by adding up the number of individuals with short wings (40) and half of the number of individuals with intermediate-length wings (160/2 = 80), which gives a total of 120.

To find the frequency of the L allele, we can subtract the frequency of the l allele from 1:

1 - (120/600) = 0.8

Therefore, the frequency of the L allele is 0.8, and the best choice is D.

Suppose Variants at a Single Locus Affect Wing Length in a Species