Genetic Variation from Errors Quick Check 3 of 53 of 5 Items Question Which type of mutation causes cystic fibrosis?(1 point) Responses substitution substitution insertion insertion deletion deletion silent silent Skip to navigation page 12 of 12

Answer 1

Cystic fibrosis is primarily caused by a deletion mutation. Specifically, it is often due to the deletion of three nucleotides in the CFTR gene, which results in the loss of the amino acid phenylalanine at position 508 of the CFTR protein. Therefore, the correct response is deletion.