Question

which type of mutation causes cystic fibrosis?
a subsitution
b insertion
c deletion
d silent

Answer 1

Cystic fibrosis is primarily caused by a deletion mutation. Specifically, the most common mutation associated with cystic fibrosis is the deletion of three nucleotides in the CFTR gene, which results in the loss of the amino acid phenylalanine at position 508 (referred to as ΔF508). Therefore, the correct answer is:

c) deletion