Definition of point mutation Point mutation

We found 2 definitions of point mutation from 2 different sources.

What does point mutation mean?

Noun
point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene
		gene mutation
		chromosomal mutation, genetic mutation, mutation a change or alteration in form or qualities

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point mutation (Noun)
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.