# Answer to Question #77522 in Genetics for jagannath nath

Question #77522

The frequency of a recessive allele in a large randomly mating population is 0.2.

What is the frequency of:

(a) The dominant allele?

(b) The heterozygote

What is the frequency of:

(a) The dominant allele?

(b) The heterozygote

Expert's answer

a. q=0.2, and p+q=1. Thus, the frequency of dominant allele is 1-0.2=0.8

b. The frequency of heterozygote is 2*p*q. It is 2*0.8*0.2 = 0.32

b. The frequency of heterozygote is 2*p*q. It is 2*0.8*0.2 = 0.32

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