Red-Green Colorblindness Is Inherited as a Sex-Linked Recessive Trait

question 47

Multiple Choice

Red-green colorblindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. Can a man with normal color vision father a daughter who is red-green colorblind?

• A)Yes, if the woman with whom he mates is red-green colorblind.
• B)Yes, if the man is heterozygous for red-green colorblindness.
• C)No, he can't (unless there is a mutation).
• D)No, the expression of the trait skips a generation.