title: The structure of a morphogenetic cytoplasm, present in the polar lobe of Bithynia tentaculata (Gastropoda, Prosobranchia).
mesh_terms: D000818:Animals; D003593:Cytoplasm / Q000032:analysis; D005260:Female; D008854:Microscopy, Electron; D009024:Morphogenesis; D009940:Organoids / Q000032:analysis; D010063:Ovum / Q000032:analysis / Q000166:cytology* / Q000254:growth & development; D012313:RNA / Q000032:analysis; D012260:Ribonucleases; D012908:Snails / Q000196:embryology*; D013194:Staining and Labeling
chemical_list: D012313:RNA; D012260:Ribonucleases