173k views
3 votes
Cystic fibrosis is an inherited disease that affects breathing and digestion. it is caused by a single recessive allele. two parents without cystic fibrosis have a child who has cystic fibrosis. what is the probability that their third child will be a boy with cystic fibrosis?

1 Answer

2 votes
The correct answer is 25%.
User Kaushik Chandru
by
8.4k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.