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).
Also Known As:
Disomies, Uniparental; Heterodisomies, Uniparental; Heterodisomy, Uniparental; Isodisomies, Uniparental; Uniparental Disomies; Uniparental Heterodisomies; Uniparental Isodisomies; Disomy, Uniparental; Uniparental Heterodisomy; Uniparental Isodisomy