An individual heterozygous for cystic fibrosis ________.
A)cannot have children with cystic fibrosis
B)is a carrier
C)will have children who are all carriers of cystic fibrosis
D)has cystic fibrosis

Question

Quizplus · Accepted Answer

Being heterozygous for cystic fibrosis means the individual has one normal copy of the CFTR gene and one mutated copy. This individual is a carrier of cystic fibrosis, but does not have the disease themselves. They have a 50% chance of passing on the mutated gene to their offspring, but as long as their partner does not carry the mutated gene, their children will not have cystic fibrosis.

An Individual Heterozygous for Cystic Fibrosis ________