Cell or Molecular Dysfunction
point mutation Audio
point mu·ta·tion
Subclass of:
Mutation
Definitions related to point mutation:
  • A mutation caused by the substitution of one nucleotide for another. This results in the DNA molecule having a change in a single base pair.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • A small-scale mutation in which a single nucleotide is exchanged for another. Mutagenic chemicals and mistakes in DNA replication may result in point mutations.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • An alteration in a DNA sequence caused by the substitution of a single nucleotide for another nucleotide.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • Mutation caused by the substitution of one nucleotide for another; the DNA molecule changes a single base pair.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Point mutation, change within a gene in which one base pair in the DNA sequence is altered. Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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