title: Polar lobe formation and cytokinesis in fertilized eggs of Ilyanassa obsoleta. I. Ultrastructure and effects of cytochalasin B and colchicine.
mesh_terms: D000818:Animals; D002455:Cell Division; D002462:Cell Membrane; D003078:Colchicine / Q000494:pharmacology*; D003571:Cytochalasin B / Q000494:pharmacology*; D003593:Cytoplasm; D005260:Female; D005306:Fertilization; D008854:Microscopy, Electron; D008870:Microtubules; D008938:Mitosis; D009940:Organoids; D010063:Ovum / Q000166:cytology* / Q000187:drug effects; D012908:Snails / Q000196:embryology*
chemical_list: D003571:Cytochalasin B; D003078:Colchicine