title: Three levels of G-band differentiation.
abstract: G-band "fusions" in the more contracted chromosomes, and G-band "splittings" in the longer chromosomes, have been cited directly or by implication to be natural cyclical states of human chromosomes. This report presents three levels of G-band differentiation producted by a single techinque, and compares them with three corresponding levels of R-band differentiation reported by others. It argues for the possibility of artifactural band "fusion" mechanisms in the more contracted chromosomes.
mesh_terms: D001399:Azure Stains; D002871:Chromosome Banding; D005333:Fetus / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000648:ultrastructure
chemical_list: D001399:Azure Stains