In 1959 dark moths comprised 90 of the peppered moth populat

In 1959, dark moths comprised 90% of the peppered moth population. E. What is the frequency of the dominant and recessive allele in 1959? Show work please

Solution

Answer

Dark moths are dominant and white moths are recessive.

Dark moths genotypes are DD, DD.

While moth genotypes are DD.

Dark moths are 90% means, white moths are 10%.

White moths (bb) frequency= q^2= 10/100=0.1

The frequency of recessive allele (q)= sqrt of 0.1= 0.32

As p+q=1

P=1-q= 1-0.32= 0.68

The frequency of dominant allele = D= 0.68