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Cystic Fibrosis Is a Recessive Disorder

Question 80

Multiple Choice

Cystic fibrosis is a recessive disorder.If a couple,each of whom is heterozygous for the CFTR mutation,have children,what is the probability that they will have a child with cystic fibrosis?  


A) 0%
B) 25%
C) 50%
D) 75%
E) 100%

Correct Answer:

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