Frameshift-mutation definition

frāmshĭft
A mutation in a DNA chain that occurs when the number of nucleotides inserted or deleted is not a multiple of three, so that every codon beyond the point of insertion or deletion is read incorrectly during translation.
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A mutation of a gene caused by the addition or deletion of any number of nucleotides other than three or multiples of three in a DNA sequence: messenger RNA derived from such DNA will carry faulty instructions for the synthesis of proteins.
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A mutation in a DNA chain that occurs when the number of nucleotides inserted or deleted is not a multiple of three, so that every codon beyond the point of insertion or deletion is read incorrectly during translation.
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(genetics) A genetic mutation that either inserts or deletes a series of nucleotides that is not divisible by three and thus disrupts gene expression by codons.
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Other Word Forms

Noun

Singular:
frameshift-mutation
Plural:
frameshift-mutations