Definitions for Mutationmyuˈteɪ ʃən

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

Random House Webster's College Dictionary

mu•ta•tionmyuˈteɪ ʃən(n.)

  1. Biol. a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome. an individual, species, or the like resulting from such a departure.

    Category: Genetics

  2. the act or process of changing.

  3. a change or alteration, as in form or nature.

  4. a change in a speech sound caused by assimilation to a nearby sound, esp. umlaut.

    Category: Phonetics, Language/Linguistics

Origin of mutation:

1325–75; ME < L

mu•ta′tion•al•ly(adv.)

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

Wiktionary

  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

Freebase

  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.


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