Oocytes in the testis.
D000367:Age Factors; D000818:Animals; D002454:Cell Differentiation; D002678:Chimera; D012734:Disorders of Sex Development / Q000473:pathology*; D005260:Female; D006182:H-Y Antigen; D008297:Male; D008540:Meiosis; D051379:Mice; D008817:Mice, Mutant Strains / Q000033:anatomy & histology; D009865:Oocytes / Q000473:pathology*; D010063:Ovum / Q000473:pathology*; D012671:Seminiferous Tubules / Q000166:cytology; D012741:Sexual Maturation; D013737:Testis / Q000473:pathology*
D006182:H-Y Antigen