Answered

A mutated CFTR gene codes for an abnormal CFTR protein. This protein alters the normal function of the cell, leading to the disorder cystic fibrosis.

Based on the statements, which of the following is true?

A. Cystic fibrosis causes mutations to the CFTR gene.
B. Cystic fibrosis is caused by a mutated CFTR gene.
C. The CFTR gene always causes cystic fibrosis.
D. Cystic fibrosis is an autosomal dominant disorder.



Answer :

GinnyAnswer

Final answer:

Cystic fibrosis is caused by a mutated CFTR gene that results in an abnormal CFTR protein, leading to the disorder.


Explanation:

Cystic fibrosis is caused by a mutated CFTR gene that codes for an abnormal CFTR protein, leading to the disorder. Individuals with CF inherit two mutant genes and need to have mutations in both copies of the gene to develop the disease. The presence of a normal CFTR gene can prevent the signs and symptoms of cystic fibrosis.


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