Question

in a population of 512 butterflies, 128 have white spots on their wings. Assuming that the presence of white spots is a recessive trait, and that the population is in genetic equilibrium, what is the frequency in the population of the allele that codes for white spots?

Answer 1

Answer:

0.5

Explanation:

let the alleles be W- no white spots w-white spots

ww butterflies have white spots

genotypic frequency of ww= number of butterflies with white spots/total number

= 128/512

= 0.25

alleleic frequency of w= square root of genotypic frequency of ww

= square root of 0.25

= 0.5