point mutation

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WordNet Dictionary
	Definition:		[n]  a mutation due to an intramolecular reorganization of a gene
	Synonyms:		gene mutation
	See Also:		chromosomal mutation, genetic mutation, mutation
Biology Dictionary
	Definition:		A change in a single base pair of a DNA sequence in a gene.
Glossary
	Definition:		A change in a single base pair of a DNA sequence in a gene. (See Mutation) an error at a particular point on the DNA molecule.