In Humans, Blue Eyes Are Inherited as a Recessive Autosomal

Multiple Choice

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

A) One-half of their sons will have normal color vision and brown eyes; one-half of their sons will have normal color vision and blue eyes.
B) Their sons will all have normal color vision and brown eyes.
C) One-fourth of their sons will be color-blind and have blue eyes, one-fourth of their sons will be color-blind and have brown eyes, one-fourth of their sons will have normal color vision and blue eyes, one-fourth of their sons will have normal color vision and brown eyes.
D) Their sons will all have normal color vision and blue eyes.
E) One-half of their sons will be color-blind and have blue eyes; one-half of their sons will be color-blind and have brown eyes.