title: Normal meiosis in two 47,XYY men.
abstract: Details of testicular histology and meiosis are given for two 47,XYY men, one an oligospermic childless individual, the other a fertile man with near-normal spermatogenic activity in his testes. Examination of the chromosomes at meiosis, with "Q" and "C" staining, gave no evidence for the occurrence of the second Y chromosome in the germ line of either individual.
mesh_terms: D000328:Adult; D005298:Fertility; D006801:Humans; D008297:Male; D008540:Meiosis; D009845:Oligospermia / Q000235:genetics / Q000473:pathology; D012671:Seminiferous Tubules / Q000473:pathology; D012729:Sex Chromosome Aberrations; D012730:Sex Chromosomes; D013091:Spermatogenesis; D013093:Spermatogonia / Q000166:cytology