title: Cytochalasin B blocks sperm incorporation but allows activation of the sea urchin egg.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D002467:Cell Nucleus / Q000502:physiology; D003571:Cytochalasin B / Q000494:pharmacology*; D005260:Female; D005306:Fertilization / Q000187:drug effects*; D008297:Male; D009068:Movement / Q000187:drug effects; D010063:Ovum / Q000187:drug effects / Q000502:physiology*; D010101:Oxygen Consumption / Q000187:drug effects; D012617:Sea Urchins; D013094:Spermatozoa / Q000187:drug effects / Q000502:physiology*
chemical_list: D000596:Amino Acids; D003571:Cytochalasin B