The most common type of mutation that cause cystic fibrosis is a
A) deletion.
B) insertion.
C) base-pair substitution.
D) gene duplication.
E) transformation.

Name: The most common type of mutation that cause cystic fibrosis is a A) deletion. B) insertion. C) base-pair substitution. D) gene duplication. E) transformation.
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Question

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The most common mutation causing cystic fibrosis is the deletion of three nucleotides in the CFTR gene, specifically the deletion of phenylalanine at position 508 (ΔF508).

The Most Common Type of Mutation That Cause Cystic Fibrosis