title: Morphological parameter variations between sister chromatids by electron microscopy.
abstract: Five morphological parameters of sister chromatids, viz radius, length, centromeric index, volume and centromere width, were studied by electron microscopy, from 140 human number 1 chromosomes, and 122 human number 2 chromosomes. The degree of variation obtained ranged from 0.277 +/- 0.003% and 0.286 +/- 0.005% for the centromeric index of chromosomes 1 and 2, respectively, to 9.835 +/- 0.933% and 13.472 +/- 1.461% for centromere width.
mesh_terms: D002478:Cells, Cultured; D002842:Chromatids / Q000648:ultrastructure*; D002877:Chromosomes, Human / Q000648:ultrastructure*; D002878:Chromosomes, Human, Pair 1; D002889:Chromosomes, Human, Pair 2; D006801:Humans; D008214:Lymphocytes / Q000166:cytology / Q000648:ultrastructure