In humans, blue eyes are inherited as a recessive autosomal trait and colour blindness is an X- linked recessive trait. A woman with blue eyes and normal colour vision whose father was colour blind marries a man who also has normal colour vision. He has brown eyes, but his mother had blue eyes. Which of the following do you expect to be true for their sons?

Question

Quizplus · Accepted Answer

The woman is a carrier for color blindness (X^NX^c) and has blue eyes (bb). The man has normal vision (X^NY) and is heterozygous for brown eyes (Bb). Their sons can inherit X^c from the mother and Y from the father, resulting in color blindness, or X^N from the mother and Y from the father, resulting in normal vision. For eye color, sons can inherit either B or b from the father, resulting in brown or blue eyes, respectively. Thus, all combinations are possible.

In Humans, Blue Eyes Are Inherited as a Recessive Autosomal