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  • Institution/s: Rheinische Friedrich-Wilhelms-Universität Bonn, Universidad de Valladolid
  • Project: Diccionario Terminológico de Genética (Eurogene)
  • Identification number: 66
  • Subdomains: Studies of chromatin, Studies of DNA, Studies of RNA, Techniques
  • Author/s: Ana María ALCONCHEL SEBASTIÁN, Beatriz BURGOS CUADRILLERO, Inés PLAZA FONTANET, Patricia ROJO DE DOMINGO
  • Creation / modification date: 30-01-2014
  • Term: Barr body (X-chromatin body)
  • Gramatical category: s
  • Definition: A densely staining mass in the somatic nuclei of mammalian females; an inactivated X chromosome.
  • Context: The Barr body, as it came to be known, is not seen in the nuclei of the cells of normal males.
  • Notes: Originally called sex chromatin or X-chromatine, its discovery in 1949 by two Canadian researchers, Murray Barr and Edward Bertram, led to a whole new field of study, human cytogenetics, the study of chromosome abnormalities.
  • Remission: anton, allosome. Source: ARORA, S. (2006). Excel with complete genetics. Laxmi Publications.
  • Sources:
    • Term: CUMMINGS, M.R. (2011).Human heredity: principles and issues. Belmont: Brooks/Cole Cengage Learning.
    • Definition: CUMMINGS, M.R. (2011).Human heredity: principles and issues. Belmont: Brooks/Cole Cengage Learning.
    • Context: SLOANE, E. (2002). Biology of women. Albany: Delmar Thomson Learning.
    • Notes: SLOANE, E. (2002). Biology of women. Albany: Delmar Thomson Learning
  • Images:
    • Barr body (X-chromatin body )
      http://i938.photobucket.com/albums/ad230/erwinbue/Barr-Krperchen100oilbeschriftet.jpg (abgerufen im August 2013).
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