title: X and Y chromosome pairing and disjunction in a male mouse with an XYY sex-chromosome constitution.
mesh_terms: D000818:Animals; D002869:Chromosome Aberrations; D008297:Male; D008540:Meiosis; D051379:Mice; D008815:Mice, Inbred Strains; D008938:Mitosis; D012730:Sex Chromosomes; D013094:Spermatozoa / Q000166:cytology