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point mutation

n. (context genetics English) A mutation that involves the replacement, addition or deletion of a small number of bases (especially just one) at a specific site within a gene

point mutation

n. a mutation due to an intramolecular reorganization of a gene [syn: gene mutation]

Point mutation

A point mutation, or single base modification, is a type of mutation that causes a single nucleotide base substitution, insertion, or deletion of the genetic material, DNA or RNA. The term frameshift mutation indicates the addition or deletion of a base pair.

A point mutant is an individual that is affected by a point mutation.

Repeat induced point mutations are recurring point mutations, discussed below.

Usage examples of "point mutation".

It made the gene vulnerable to point mutation caused by random radiation.