back mutation

back mu·ta·tion

reversion of a gene to an ancestral form due to further mutation to the original codon or one coding for the same amino acid.

Synonym(s): reverse mutation

back mutation

n.

A reversal process whereby a gene or other nucleotide sequence that has undergone mutation returns to its previous state.

back mutation

The return of a gene to its original nucleotide sequence after a mutation.

back mutation

an inherited change (MUTATION) in a mutant gene that causes it to regain its WILD TYPE function. Compare FORWARD MUTATION.