Molecular studies of trisomy 18.
- 1 June 1993
- journal article
- review article
- Vol. 52 (6) , 1139-44
Abstract
We have determined the parental origin of 50 cases of trisomy 18. In 48 cases the additional chromosome was maternal in origin, and in 2 cases it was paternal in origin. Seven cases, including both those with an additional paternal chromosome, appeared to be the result of postzygotic error. In contrast to the situation in nondisjunction involving chromosomes 21 and X, there was no evidence for nullochiasmate nondisjunction.This publication has 33 references indexed in Scilit:
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