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.

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trans·ver·sion tran(t)s-'vər-zhən, tranz- n
1) the eruption of a tooth in an abnormal position on the jaw
2) a genetic mutation in RNA or DNA that results from the substitution of a purine base for a pyrimidine base or of a pyrimidine base for a purine base

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trans·ver·sion (trans-vurґzhən) [L. transvertere to turn away] 1. displacement of a tooth from its proper numerical position in the jaw. 2. in molecular genetics, a point mutation in which a purine base replaces a pyrimidine base or vice versa. Cf. transition.

Medical dictionary. 2011.

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Look at other dictionaries:

  • 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 — 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… …   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 — 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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