Uniparental Disomy

Overview

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Is a:

Cell or Molecular Dysfunction

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.

Synonyms:

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

Broader Topics:

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