If both the mother and the father are carriers for the cystic fibrosis gene, what are the chances that their child will be a cystic fibrosis carrier?

Question

Quizplus · Accepted Answer

When both parents are carriers of the cystic fibrosis gene, there is a 50% chance that their child will also be a carrier. This is because each parent has one copy of the mutated gene and one normal gene, and they can pass either gene to their offspring.

If Both the Mother and the Father Are Carriers for the Cystic