Point-mutation
noun, Genetics.
1.
a change in a single base in a nucleotide sequence.
point mutation n.
A mutation that involves a single nucleotide and may consist of loss of a nucleotide, substitution of one nucleotide for another, or the insertion of an additional nucleotide.
point mutation
A mutation in which one nucleotide is added, deleted, or replaced by another. Point mutations include missense, nonsense, frameshift, and silent mutations.
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