- #1
protractor
- 17
- 1
- Homework Statement
- Jane and Bill are married. Each of them has a brother with cystic fibrosis, which is autosomal recessive. Neither Jane, Bill or any of their parents have the disease. Based on this information, what is the probability that if this couple has a child, the child will have cystic fibrosis?
- Relevant Equations
- Cystic fibrosis is autosomal recessive.
I think both Jane and Bill are carriers. I'm unsure if the answer is 1/4 (25%).