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  • Institution/s: Universidad de Valladolid, Universitatea de Vest din Timişoara
  • Project: Diccionario Terminológico de Genética (Eurogene)
  • Identification number: 116
  • Subdomains: Studies of chromatin, Studies of DNA, Studies of RNA, Techniques
  • Author/s: Ana MUÑOZ GASCÓN, Bianca CONSTANTINESCU, Isaac MORENO RUIZ, María Eugenia HERRERAS
  • Creation / modification date: 01-02-2014
  • Term: X-chromatin body (Barr body)
  • Gramatical category: s
  • Definition: Cytological manifestation of the inactive X chromosome (Xi) in interphase nuclei.
  • Context: The number of X-chromatin bodies in interphase cells was compared with the number of X chromosomes in metaphases in nineteen carcinomas of the cervix uteri.
  • Weighting mark: nor
  • Sources:
    • Term: EMERY, A.E.H. y MUELLER, R.F. (1992) Elements of Medical Genetics, Churchill Livingstone: New York. 8th Edition.
    • Definition: CHADWICK B. AND WILLARD H. Chromatin of the Barr body: histone and non-histone proteins associated with or excluded from the inactive X chromosome. Hum Mol Genet. 2003;12(17):2167–2178. http://www.ncbi.nlm.nih.gov/pubmed/12915472.
    • Context: ATKIN, N. ET AL., A comparison of the number of X-chromatin bodies and of X chromosomes in carcinomas of the cervix uteri. Cytobios. 1989;60 (241):111-4. http://www.ncbi.nlm.nih.gov/pubmed/2632146.
  • Images:
    • Barr body (X-chromatin body )
      http://histobarcelo2010.blogspot.com.es/2010/05/corpusculo-de-barr-2n-46-xx.html
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