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point mutation
(redirected from Point source mutations)

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
point mutation
n.
A mutation that changes only one small area or one nucleotide in a gene.

point mutation
A mutation in which one nucleotide is added, deleted, or replaced by another. Point mutations include missense, nonsense, frameshift, and silent mutations.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.point mutation - (genetics) a mutation due to an intramolecular reorganization of a gene
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
chromosomal mutation, genetic mutation, mutation - (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism


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