frameshift mutation(redirected from Frame shift mutation)
Also found in: Dictionary, Thesaurus, Medical, Legal.
frameshift mutation[¦frām‚shift myü′tā·shən]
The addition or deletion of nucleotides to anexon in numbers other than three, which shifts the translation reading frame so a new set of codons beyond the point of abnormality in the messenger ribonucleic acid is read. Also known as phase-shift mutation.