Both Bob and Sally have brown eyes,yet their newborn son has blue eyes.This can happen because

A) all infants have blue eyes that eventually turn brown.
B) each parent was carrying a dominant gene for brown eyes.
C) blue eyes are dominant.
D) each parent was carrying a recessive gene for blue eyes.

Recessive Gene

A recessive gene is one whose effects are masked in the presence of a dominant gene, and thus, its traits are only expressed in a homozygous state.

Dominant Gene

a gene that suppresses the expression of its allele, resulting in its trait being manifested in the organism.

Brown Eyes

A physical trait characterized by the presence of melanin in the iris, resulting in a brown coloration of the eyes.