The color of mice is determined by two pairs of non-allelic, unlinked genes. The dominant gene of one pair

The color of mice is determined by two pairs of non-allelic, unlinked genes. The dominant gene of one pair is responsible for the gray color; its recessive allele is black. The dominant gene of the other pair contributes to the manifestation of chromaticity, its recessive allele suppresses chromaticity. When gray mice were crossed with each other, the offspring of 82 gray, 35 white and 27 black mice were obtained. Determine the genotypes of the parents and offspring.

given:
A-white
a-black
Aa-gray
decision:
R: Aa x Aa
D: A, a x A, a
F1: Aa (gray), AA (white), aa (black)
answer: genotypes of parents-Aa
offspring-AA, aa, aa