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Updated: Aug 19, 2026

Array Comparative Genomic Hybridization (Array CGH) for Detection of Genomic Copy Number Variants
Published on: February 21, 2015
Minor chromosome variations and selected heteromorphisms in 200 unclassifiable mentally retarded patients and 200
Abstract:
Lymphocyte chromosome preparations from 200 mentally retarded children and 200 normal adult controls were analyzed by G-, Q-, and C-banding techniques for minor chromosome variations (G and Q) and selected heteromorphisms (G and C). Minor variations scored included inv(9), prominent or decreased short arms and/or satellites on acrocentric chromosomes, and 17 ph. C heteromorphisms analyzed included those involving 1qh, 9zh, and 16zh regions. Length variations of Yq were scored on G-banded karyo types. No significant differences in frequencies of scored minor variations or heteromorphisms were noted between the retarded and control populations.
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