Which type of mutation causes cystic fibrosis?(1 point)

Question

Responses

silent
silent

deletion
deletion

substitution
substitution

insertion

Answer 1

Cystic fibrosis is primarily caused by a deletion mutation, specifically a three-nucleotide deletion in the CFTR gene that leads to the loss of the amino acid phenylalanine at position 508 (ΔF508). Therefore, the correct answer is:

deletion