title: Classification of qh regions in human chromosomes 1, 9, and 16 by C-banding.
abstract: We present a classification for secondary constriction (qh) regions with C-banding technique in chromosomes 1, 9, and 16 by means of comparing them to the short arm of chromosome 16. It is simple and convenient and can be used routinely. It can be incorporated into the modified Paris nomenclature system.
mesh_terms: D002877:Chromosomes, Human; D002900:Chromosomes, Human, 1-3; D002902:Chromosomes, Human, 16-18; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D007621:Karyotyping