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Uniparental Disomy

The presence in a cell of two paired chromosomes from the same parent, with no chromosome of that pair from the other parent. This chromosome composition stems from non-disjunction (NONDISJUNCTION, GENETIC) events during MEIOSIS. The disomy may be composed of both homologous chromosomes from one parent (heterodisomy) or a duplicate of one chromosome (isodisomy).

Year introduced: 2002

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Tree Number(s): C23.550.210.645.890, G05.365.590.175.935

MeSH Unique ID: D024182

Entry Terms:

  • Disomies, Uniparental
  • Uniparental Disomies
  • Disomy, Uniparental
  • Uniparental Isodisomy
  • Isodisomies, Uniparental
  • Uniparental Isodisomies
  • Uniparental Heterodisomy
  • Heterodisomies, Uniparental
  • Heterodisomy, Uniparental
  • Uniparental Heterodisomies

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