In molecular biology, transversion refers to the substitution of a purine for a pyrimidine or vice versa [ [ Mutations & Mutagenesis ] ] . It can only be reverted by a spontaneous reversion. Because this type of mutation changes the chemical structure dramatically, the consequences of this change tend to be more severe and less common than that of transitions.Transversions can be caused by ionizing radiation and alkylating agents.

ee also

* Transition


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  • Transversion — Trans*ver sion, n. The act of changing from prose into verse, or from verse into prose. [1913 Webster] …   The Collaborative International Dictionary of English

  • transversion — transversion. См. трансверсия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Transversion —   [lateinisch, zu transvertere »hinüberwenden«] die, / en, Molekulargenetik: mutative Veränderung eines einzelnen Nukleotids der DNA (Punktmutation), bei der eine Purinbase durch eine Pyrimidinbase oder umgekehrt ersetzt wird …   Universal-Lexikon

  • Transversion — Möglichkeiten der Transversion Ausgangsbase Mutation A → C / T C → A / G G → C / T T → A / G Unter Transversion versteht man in der Genetik eine Punktmutation, bei de …   Deutsch Wikipedia

  • transversion — trans·ver·sion (trănz vûrʹzhən, shən) n. A point mutation in which a purine is replaced by a pyrimidine, or a pyrimidine is replaced by a purine.   [Probably trans + inversion.] * * * …   Universalium

  • transversion — noun A point mutation in which a purine is replaced with a pyrimidine, or vice versa …   Wiktionary

  • transversion — 1. Substitution in DNA and RNA of a pyrimidine for a purine, or vice versa, by mutation. 2. In dentistry, the eruption of a tooth in a position normally occupied by another; transposition of a tooth. * * * trans·ver·sion …   Medical dictionary

  • transversion — trans·ver·sion …   English syllables

  • transversion — The substitution in DNA or RNA of one purine by a pyrimidine or vice versa. See: transition, base substitution …   Glossary of Biotechnology

  • transversion — tran(t)sˈvərzhən, nzˈ noun ( s) Etymology: Latin transversus (past participle of transvertere to turn or direct across) + English ion more at transverse : an act, process, or instance of transversing …   Useful english dictionary

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