Uniparental Disomy
Synonyms
Disomies, Uniparental
Disomy, Uniparental
Heterodisomies, Uniparental
Heterodisomy, Uniparental
Isodisomies, Uniparental
Uniparental Disomies
Uniparental Heterodisomies
Uniparental Heterodisomy
Uniparental Isodisomies
Uniparental Isodisomy
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).