| Literature DB >> 730157 |
Abstract
The frequency of the 'inversion' of flourescent constitutive heterochromatin in chromosome 3 was the same in a sample of 370 retarded persons as in a sample of 222 mentally normal men. It can be concluded that this 'inversion' is not associated with mental retardation. This variant is more common (4%) in the Canadian population we studied than in samples reported by most other authors (0-1.7%). Possibly the founder effect could play a role in the differences. Two cases of homozygotes for this 'inversion' were identified.Entities:
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Year: 1978 PMID: 730157 DOI: 10.1007/bf00295403
Source DB: PubMed Journal: Hum Genet ISSN: 0340-6717 Impact factor: 4.132