Article
Redefining the risks of prenatally ascertained supernumerary marker chromosomes: a collaborative study.
Journal of medical genetics - 1 Aug 2006
Graf M D, Christ L, Mascarello J T, Mowrey P, Pettenati M, Stetten G, Storto P, Surti U, Van Dyke D L, Vance G H, Wolff D, Schwartz S
Abstract excerpt
BACKGROUND: A marker chromosome is defined as a structurally abnormal chromosome that cannot be identified by routine cytogenetics. The risk for phenotypic abnormalities associated with a marker chromosome depends on several factors, including inheritance, mode of ascertainment, chromosomal origin, and the morphology, content, and structure of the marker. METHODS: to understand the karyotype-phenotype...
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