Definitions for Mutationmyuˈteɪ ʃən

This page provides all possible meanings and translations of the word Mutation

Princeton's WordNet

  1. mutant, mutation, variation, sport(noun)

    (biology) an organism that has characteristics resulting from chromosomal alteration

  2. mutation, genetic mutation, chromosomal mutation(noun)

    (genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism

  3. mutation(noun)

    a change or alteration in form or qualities


  1. mutation(n.)

    (Biol.) (a) As now employed (first by de Vries), a cellular process resulting in a sudden inheritable variation (the offspring differing from its parents in some well-marked character or characters) as distinguished from a gradual variation in which the new characters become fully developed only in the course of many generations. The occurrence of mutations, the selection of strains carrying mutations permitting enhanced survival under prevailing conditions, and the mechanism of hereditary of the characters so appearing, are well-established facts; whether and to what extent the mutation process has played the most important part in the evolution of the existing species and other groups of organisms is an unresolved question. (b) The result of the above process; a suddenly produced variation. Mutations can occur by a change in the fundamental coding sequence of the hereditary material, which in most organisms is DNA, but in some viruses is RNA. It can also occur by rearrangement of an organism's chromosomes. Specific mutations due to a change in DNA sequence have been recognized as causing certain specific hereditary diseases. Certain processes which produce variation in the genotype of an organism, such as sexual mixing of chromosomes in offspring, or artificially induced recombination or introduction of novel genetic material into an organism, are not referred to as mutation.

  2. Origin: [L. mutatio, fr. mutare to change: cf. F. mutation. See Mutable.]


  1. mutation(Noun)

    any alteration or change

  2. mutation(Noun)

    Any heritable change of the base-pair sequence of genetic material

  3. mutation(Noun)

    a mutant

Webster Dictionary

  1. Mutation(noun)

    change; alteration, either in form or qualities

  2. Origin: [L. mutatio, fr. mutare to change: cf. F. mutation. See Mutable.]


  1. Mutation

    In genetics, a mutation is a change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal genetic element. Mutations result from unrepaired damage to DNA or to RNA genomes, from errors in the process of replication, or from the insertion or deletion of segments of DNA by mobile genetic elements. Mutations may or may not produce discernable changes in the observable characteristics of an organism. Mutations play a part in both normal and abnormal biological processes, including evolution, cancer, and the development of the immune system. Mutation can result in several different types of change in sequences, Mutations in genes can either have no effect, alter the product of a gene, or prevent the gene from functioning properly or completely. Mutations can also occur in nongenic regions. One study on genetic variations between different species of Drosophila suggests that if a mutation changes a protein produced by a gene, the result is likely to be harmful, with an estimated 70 percent of amino acid polymorphisms having damaging effects, and the remainder being either neutral or weakly beneficial. Due to the damaging effects that mutations can have on genes, organisms have mechanisms such as DNA repair to prevent or correct mutations.

U.S. National Library of Medicine

  1. Mutation

    Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.

Translations for Mutation

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