PATHOLOGY

Detailed explanation-1: -Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

Detailed explanation-2: -Phenotype shown as brown or blue while dominant brown gene = B and recessive blue gene = b Individuals with bb have blue eyes, while individuals with BB or Bb have brown eyes.

Detailed explanation-3: -Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye’s iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.

Detailed explanation-4: -The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive.

Detailed explanation-5: -Finally, two major genes are responsible for eye color: HERC2 and OCA2.