Diseases [C] » Pathological Conditions, Signs and Symptoms [C23] » Pathologic Processes » Chromosome Aberrations » Nondisjunction, Genetic » Uniparental Disomy
Phenomena and Processes [G] » Genetic Phenomena [G05] » Genetic Variation » Mutation » Chromosome Aberrations » Uniparental Disomy
Description
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). MeSH
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