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Definition of Homotrisomy

Homotrisomy: Trisomy of the same chromosome. The occurrence of two children in the same family with trisomy 21 is an instance of homotrisomy.

See also: Heterotrisomy.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=38319
Last Editorial Review: 10/9/2012

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