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Given That an Individual Is a Compound Heterozygote at the CFTR

Question 31

Multiple Choice

Given that an individual is a compound heterozygote at the CFTR locus, the gene that causes cystic fibrosis, what can be inferred?


A) If the individual has children, all the children will have cystic fibrosis.
B) At least one of the individual's parents had cystic fibrosis.
C) The individual is a carrier for cystic fibrosis, but does not have the disease.
D) A drug that effectively treats one allele may not treat the other.

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