Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
A frameshift mutation is a type of genetic mutation where the addition or deletion of nucleotides changes the reading frame of the gene, altering the sequence of amino acids and potentially leading to nonfunctional proteins.