If the genotypic frequencies of AA Aa and aa are 06 02 and 0

If the genotypic frequencies of AA, Aa, and aa are 0.6, 0.2, and 0.2, respectively, then the frequency of allele A is _____ and that of allele a is _____ .

Please show your work

Solution

Total proportion is 1.

** Here frequency is a wrong term.the exact term is proportion.

Prop.(AA) = 0.6 ,Prop.(Aa) = 0.2 , Prop.(aa) = 0.2

Prop.(AA) + Prop.(Aa) + Prop.(aa) = 1

From here Prop.(A) = Prop.(AA) + Prop.(Aa) = 0.6+0.2 = 0.8 .

And Prop.(a) = Prop.(Aa) + Prop.(aa) = 0.2 + 0.2 = 0.4 .