title: The human Y chromosome: its routine identification and variability.
abstract: Different criteria for identifying the human Y chromosome using only conventional staining techniques were evaluated and a procedure based on three of them was developed. It leads to correct identification in 93% of cells even without resorting to differences in size between the Y and the other G chromosomes. The variability in size of the human Y chromosome was assessed in a random group of White men. It was found to be significantly greater than that of all other chromosomes in the karyotype when the comparisons were made in such a way as to avoid the size-dependent component of variation.
mesh_terms: D000704:Analysis of Variance; D002900:Chromosomes, Human, 1-3 / Q000032:analysis; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D006801:Humans; D007620:Karyometry; D007621:Karyotyping; D007962:Leukocytes / Q000032:analysis; D008297:Male; D010779:Photofluorography; D011336:Probability; D012730:Sex Chromosomes / Q000032:analysis