title: Variation in trypsin banding at different stages of contraction in human chromosomes and the definition, by measurement, of the "average" karyotype.
abstract: Ideograms of chromosomes obtained by the trypsin/Leishman method are presented in which the size and position of the bands of chromosomes at different stages of contraction have been defined by measurement. A hypothesis is suggested which could explain the changes observed in the banding pattern between stages of condensation.
mesh_terms: D002875:Chromosomes / Q000032:analysis*; D006801:Humans; D007621:Karyotyping / Q000379:methods*; D008722:Methods; D013194:Staining and Labeling; D014357:Trypsin
chemical_list: D014357:Trypsin