edugeneedugene2013
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  • Institution/s: Rheinische Friedrich-Wilhelms-Universität Bonn, Universidad de Alicante, Universidad de Valladolid, Université d'Artois
  • Project: Diccionario Terminológico de Genética (Eurogene)
  • Identification number: 181
  • Subdomains: Studies of chromatin, Studies of DNA, Studies of RNA, Techniques
  • Author/s: Beatriz BURGOS CUADRILLERO, Gema GUNTIÑAS FRAU, Isaac MORENO RUIZ, Marie-Hélène GARCIA
  • Creation / modification date: 27-02-2014
  • Term: non disjunction
  • Gramatical category: s
  • Definition: The failure of paired chromosomes or sister chromatids to separate and go to different cells during meiosis.
  • Context: Over 300 cases of trisomy 21 were analyzed to characterize the causes of maternal non-disjunction and to evaluate the basis for maternal age-dependent trisomy 21. We confirmed the observation that recombination along 21q is reduced among non-disjoined chromosomes 21 and further demonstrated that the alterations in recombination are restricted to meiosis I origin.
  • Weighting mark: nor
  • Sources:
    • Term: BUSELMAIER, Werner (2012). Biologie für Mediziner. 12. neubearbeitete und erweiterte Aufl. Berlin, Heidelberg: Springer Verlag, 342.
    • Definition: BUSELMAIER, Werner (2012). Biologie für Mediziner. 12. neubearbeitete und erweiterte Aufl. Berlin, Heidelberg: Springer Verlag, 342.
    • Context: BUSELMAIER, Werner (2012). Biologie für Mediziner. 12. neubearbeitete und erweiterte Aufl. Berlin, Heidelberg: Springer Verlag, 196.
  • Images:
    • non-disjunction
      http://zytogenetikforum.at/html/index.php/basiswissen/128-crossingover (abgerufen im November 2013).
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