A dark-haired blue-eyed woman, homozygous for two alleles, married a dark-haired blue-eyed man

A dark-haired blue-eyed woman, homozygous for two alleles, married a dark-haired blue-eyed man, heterozygous for the first allele. Dark hair color and brown eyes are dominant features. determine the genotypes of parents and offspring, the types of gametes produced and the likely genotypes of children.

Let’s designate the gene for dark hair as A, the gene for light hair as a. Gene for brown eyes as B, gene for blue eyes as b.

Genotype of the homozygous mother: AAbb. Genotype of the father, heterozygous for the first allele: Aabb.

R: ААbb х Ааbb – genotypes of parents

G: Ab x Ab, ab – possible gametes

F: AAbb – 50% brown hair and blue eyes;

Aabb – 50% brown hair and blue eyes.