Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color-blind. What is the probability that they will have a color-blind daughter?
What is the probability that their first son will be color-blind?
(Note the different wording in the two questions.)

Question

Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color-blind. What is the probability that they will have a color-blind daughter?
 What is the probability that their first son will be color-blind?
 (Note the different wording in the two questions.)

Quizplus · Accepted Answer

The Answer of Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color-blind. What is the probability that they will have a color-blind daughter?
 What is the probability that their first son will be color-blind?
 (Note the different wording in the two questions.)

Red-Green Color Blindness Is Caused by a Sex-Linked Recessive Allele