title: Progesterone induced maturation in oocytes of Xenopus laevis. Appearance of a 'maturation promoting factor' in enucleated oocytes.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D003593:Cytoplasm; D005260:Female; D066298:In Vitro Techniques; D008540:Meiosis; D010063:Ovum / Q000166:cytology / Q000187:drug effects* / Q000254:growth & development; D011374:Progesterone / Q000494:pharmacology*; D014020:Tissue Extracts / Q000494:pharmacology; D014316:Tritium; D014981:Xenopus / Q000196:embryology*
chemical_list: D014020:Tissue Extracts; D014316:Tritium; D011374:Progesterone