title: Spermatozoan response to the toad egg matured after removal of germinal vesicle.
mesh_terms: D000818:Animals; D001001:Anura; D004247:DNA / Q000096:biosynthesis; D005260:Female; D005306:Fertilization; D066298:In Vitro Techniques; D007314:Insemination; D008297:Male; D008938:Mitosis; D009865:Oocytes / Q000166:cytology* / Q000187:drug effects / Q000502:physiology; D010063:Ovum / Q000166:cytology*; D011374:Progesterone / Q000494:pharmacology; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa / Q000166:cytology; D014817:Vitelline Membrane / Q000502:physiology
chemical_list: D011374:Progesterone; D004247:DNA