Where have all the XYYs gone?
D005260:Female; D005456:Fluorescent Dyes; D006801:Humans; D008297:Male; D011247:Pregnancy; D012728:Sex Chromatin; D012730:Sex Chromosomes; D012732:Sex Determination Analysis; D013094:Spermatozoa / Q000166:cytology; D013194:Staining and Labeling
D005456:Fluorescent Dyes