title: Inversions and other unusual heteromorphisms detected by C-banding.
abstract: Sixteen patients with unusual heteromorphisms involving alterations of the length and/or position of centromeric heterochromatin are described. Family studies showed that the heteromorphisms were present in other relatives and segregated in the expected 1:1 ratio. There was a significantly greater frequency of unusual heteromorphisms among Orientals than in other races studied.
mesh_terms: D044466:Asian People; D002869:Chromosome Aberrations / Q000235:genetics*; D002871:Chromosome Banding; D025063:Chromosome Disorders; D007446:Chromosome Inversion; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D006254:Hawaii; D006801:Humans; D007223:Infant; D008607:Intellectual Disability / Q000235:genetics*; D008297:Male; D010375:Pedigree