Concept information
Preferred term
Uniparental Disomy
Type
-
mesh:Descriptor
Definition
- 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). The presence in a cell of a chromosome pair that is composed of duplicates of one parental chromosome. The presence in a cell of a chromosome pair that is composed of both homologous chromosomes from one parent.
Broader concept
Entry terms
- Disomy, Uniparental
Allowable Qualifier(s)
In other languages
-
French
-
DUP (Disomie UniParentale)
URI
http://data.loterre.fr/ark:/67375/JVR-K2BBR83D-C
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