Forward mutation
noun
any mutation which changes a formerly functional wild genotype or phenotype to nonfunctional
Examples
Forward mutation rendered a mutant allele.
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[fawr-werdz] /ˈfɔr wərdz/ adverb 1. . /ˈfɔːwədz/ adverb 1. towards or at a place ahead or in advance, esp in space but also in time 2. towards the front adv. Middle English, from forward + adverbial genitive -s. British English until mid-20c. preserved the distinction between forward and forwards, the latter expressing “a definite direction […]