title: Electron microscopic study of meiosis in oligopyrene spermatocytes of the silkworm.
mesh_terms: D000818:Animals; D012831:Bombyx / Q000196:embryology*; D002467:Cell Nucleus; D002843:Chromatin; D002869:Chromosome Aberrations; D003593:Cytoplasm; D004171:Diploidy; D008297:Male; D008540:Meiosis; D008854:Microscopy, Electron; D009940:Organoids; D011123:Polyploidy; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology*
chemical_list: D002843:Chromatin