point mutation

noun Genetics.

a change in a single base in a nucleotide sequence.

Origin of point mutation

First recorded in 1920–25

Words nearby point mutation

point group, point guard, point in time, point lace, point man, point mutation, point of articulation, point of departure, point of fixation, point of honor, point of honour

Medical definitions for point mutation

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.

Scientific definitions for point mutation

point mutation

A mutation in which one nucleotide is added, deleted, or replaced by another. Point mutations include missense, nonsense, frameshift, and silent mutations.