Question

Brown eye color is dominant over blue eye color in the human population. A person who is heterozygous for eye color would have _________

Answer 1

Someone who has heterozygous genes for eye color would be Bb

Answer 2

A person who is heterozygous would have a dominant eye color of Bb, which means B for brown and b for blue. This means that the brown is always the dominant trait, that is why it is a big possibility that the person's eyes are brown. However, there are small chances that brown-eyed parent will have blue-eyed child because of the b in Bb.