germinal mutation

      alteration in the genetic constitution of the reproductive cells, occurring in the cell divisions that result in sperm and eggs. Germinal mutations can be caused by radiation or chemical mutagens and may affect a single gene or an entire chromosome. A germinal mutation affects the progeny of the individual in whose reproductive cells the mutation arose and subsequent generations of that progeny. Unlike somatic mutations, which occur in the body cells and are not passed on to later generations, germinal mutations are important sources of genetic variation in natural populations that lead to evolutionary change through natural selection.

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Universalium. 2010.

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  • germinal mutation — gemalinė mutacija statusas T sritis augalininkystė apibrėžtis Genetinis pakitimas, vykstantis pirminėse lytinėse ląstelėse, iš kurių susidaro gametos. atitikmenys: angl. germinal mutation rus. зародышевая мутация …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • germinal mutation — germline mutation a mutation in a germ cell, altering the gametes and thus transmitted to progeny. Cf. somatic m …   Medical dictionary

  • mutation — mutational, adj. mutationally, adv. /myooh tay sheuhn/, n. 1. Biol. a. a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome. b. an individual, species, or the like,… …   Universalium

  • Germinal center — Infobox Anatomy Name = Germinal centre Latin = GraySubject = 175 GrayPage = 689 Caption = Image labeled in German, but Keimzentrum visible in upper right. Caption2 = Precursor = System = Artery = Vein = Nerve = Lymph = MeshName = MeshNumber =… …   Wikipedia

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  • List of genetics-related topics — This is a list of terms related to genetics. NOTOC # * 3 end * 5 end A * Acentric chromosome * Achondroplasia * Active site * Adam s Curse * Adaptation * Adenine * Adenosine * Adenovirus * Adenosine diphosphate (ADP) * Ala * Alagille syndrome *… …   Wikipedia

  • diagnosis — /duy euhg noh sis/, n., pl. diagnoses / seez/. 1. Med. a. the process of determining by examination the nature and circumstances of a diseased condition. b. the decision reached from such an examination. Abbr.: Dx 2. Biol. scientific… …   Universalium

  • gemalinė mutacija — statusas T sritis augalininkystė apibrėžtis Genetinis pakitimas, vykstantis pirminėse lytinėse ląstelėse, iš kurių susidaro gametos. atitikmenys: angl. germinal mutation rus. зародышевая мутация …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • зародышевая мутация — gemalinė mutacija statusas T sritis augalininkystė apibrėžtis Genetinis pakitimas, vykstantis pirminėse lytinėse ląstelėse, iš kurių susidaro gametos. atitikmenys: angl. germinal mutation rus. зародышевая мутация …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • Зародышевая мутация — * зародкавая мутацыя * germinal mutation …   Генетика. Энциклопедический словарь

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