title: DNA replication pattern of the Y chromosome in XYY and XXYY males.
mesh_terms: D001345:Autoradiography; D004261:DNA Replication; D004314:Down Syndrome / Q000175:diagnosis; D006801:Humans; D008297:Male; D012729:Sex Chromosome Aberrations / Q000175:diagnosis / Q000378:metabolism*; D012730:Sex Chromosomes / Q000378:metabolism*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D014316:Tritium; D013936:Thymidine