title: Repeated sequence specific to human males.
abstract: Restriction enzyme analysis and nucleic acid hybridisation show that there is a repeated sequence in human male DNA which is not present in human female DNA. This sequence is shown to constitute about 50% of the DNA in the Y chromosome and is a simple tandemly repeated DNA.
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000032:analysis*; D004262:DNA Restriction Enzymes; D006801:Humans; D008297:Male; D009693:Nucleic Acid Hybridization; D006163:Ribonuclease T1; D012723:Sex; D012730:Sex Chromosomes / Q000032:analysis*
chemical_list: D004247:DNA; D004262:DNA Restriction Enzymes; D006163:Ribonuclease T1