title: Non-random late replication of X chromosomes in mules and hinnies.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001947:Breeding; D004261:DNA Replication; D005260:Female; D005347:Fibroblasts / Q000166:cytology; D006824:Hybridization, Genetic; D007621:Karyotyping; D008214:Lymphocytes / Q000166:cytology; D010527:Perissodactyla; D012730:Sex Chromosomes; D012867:Skin / Q000166:cytology; D014316:Tritium
chemical_list: D014316:Tritium