title: Structural complexity of Y chromosome heterochromatin.
abstract: Following a standard C-banding procedure early metaphase chromosomes demonstrate a discontinuous distribution of heterochromatin in the long arm of the human Y chromosome. The discrete blocks of heterochromatin can be shown to be separated into nonrepeating sequences by in situ hybridization using probe pHY 2.1. The number of heterochromatin blocks vary from person to person.
authors.affiliation: Department of Cytogenetics, Queen Elizabeth Hospital for Children, London, Great Britain.
authors.forename: W J
authors.initials: WJ
authors.lastname: Wall
authors.forename: M S
authors.initials: MS
authors.lastname: Clark
authors.forename: P
authors.initials: P
authors.lastname: Coates
mesh_terms: D002871:Chromosome Banding; D004247:DNA / Q000648:ultrastructure; D015342:DNA Probes; D006570:Heterochromatin / Q000648:ultrastructure*; D006801:Humans; D008297:Male; D014998:Y Chromosome / Q000648:ultrastructure*
chemical_list: D015342:DNA Probes; D006570:Heterochromatin; D004247:DNA