title: An XXY sex chromosome anomaly in the mouse.
abstract: A cryptorchid male mouse with 41,XXY chromosome constitution was found in 300 male offspring that were born to our XO mice breeding colony. This individual had small testes with no sign of spermatogenesis at autopsy at 10 months of age.
authors.affiliation: Department of Hygiene and Preventive Medicine, Yamagata University School of Medicine, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Endo
authors.forename: T
authors.initials: T
authors.lastname: Watanabe
authors.forename: T
authors.initials: T
authors.lastname: Fujita
mesh_terms: D000818:Animals; D005260:Female; D005298:Fertility; D007621:Karyotyping; D008297:Male; D051379:Mice; D009630:Nondisjunction, Genetic; D012729:Sex Chromosome Aberrations / Q000235:genetics* / Q000473:pathology; D012730:Sex Chromosomes; D013091:Spermatogenesis; D013737:Testis / Q000473:pathology