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