title: Polymorphism of human chromosomes 1, 9, 16, Y: variations, segregation and mosaicism.
abstract: A study was carried out on C-banded chromosomes 1, 9, 16, Y from an unselected population and from 30 normal families. We found: a) great variability in length and position of the C-bands; b) somatic mosaicism involving C-bands; c) variants in children that were not present in parental patterns. The possible role of crossing-over in generating the last two phenomena is discussed.
mesh_terms: D000328:Adult; D002648:Child; D002871:Chromosome Banding; D002900:Chromosomes, Human, 1-3; D002902:Chromosomes, Human, 16-18; D002906:Chromosomes, Human, 6-12 and X; D003434:Crossing Over, Genetic; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D009030:Mosaicism; D011110:Polymorphism, Genetic; D012730:Sex Chromosomes; D014998:Y Chromosome