Problem
Soybean flower color is control by a single gene with a dominant allele
'A' which produces purple flower color, and a recessive allele 'a' which produces white flower color. Soybean pubescence color is control by a single gene with a dominant allele 'B' which produces tawny pubescence color, and a recessive allele 'b' which produces gray pubescence color. Answer the following questions in regards to a self-pollinated population derived from the cross between a purple/tawny variety and a white/gray variety. Fractions or percentages are both acceptable.
What is the frequency of white flowered and gray pubescence lines, without selection, in the F5:7 generation?