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uniparental disomy

   Also found in: Medical, Acronyms, Wikipedia 0.01 sec.
uniparental disomy [¦yü·nə·pə¦rent·əl dī′sō·mē]
(genetics)
Inheritance of both chromosomes or alleles of a homologous pair from one parent.


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Genomewide scan in families with schizophrenia from the founder population of Afrikaners reveals evidence for linkage and uniparental disomy on chromosome 1.
More specifically, genetic mechanisms include maternal deletion, paternal uniparental disomy (UPD, two copies of the chromosome from the father), imprinting mutations, UBE3A gene mutation, and other chromosomal abnormalities of this region.
In a smaller number of cases, the syndrome is the result of uniparental disomy in which the maternal contribution to chromosome 15q is replicated, replacing the paternal contribution (Knoll, Nicholls, Magenis, & Graham, 1989).
 
 
 
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