OocytesOogenesisOocyte DonationMammalsXenopus laevisOocyte RetrievalMeiosisMolecular Sequence DataXenopusIn Vitro Oocyte Maturation TechniquesAmino Acid SequenceMicroinjectionsFertilizationMetaphaseEmbryo, MammalianBlastocystOvumCumulus CellsBase SequenceEmbryonic DevelopmentSperm-Ovum InteractionsParthenogenesisOvaryCryopreservationSpermatozoaSperm Injections, IntracytoplasmicRNA, MessengerEmbryo TransferCloning, MolecularZona PellucidaCells, CulturedCell LineSequence Homology, Amino AcidCell NucleusZygoteMaturation-Promoting FactorCattleCytoplasmPregnancyCleavage Stage, OvumEmbryo Culture TechniquesRNA, ComplementaryEgg ProteinsRecombinant ProteinsMutationEmbryonic and Fetal DevelopmentCricetinaeDNA, ComplementaryNuclear Transfer TechniquesGene Expression Regulation, DevelopmentalKineticsCarrier ProteinsFollicular FluidSignal TransductionTOR Serine-Threonine KinasesOvulation InductionSwineCryoprotective AgentsProto-Oncogene Proteins c-mosHeLa CellsTime FactorsVitrificationDNAProtein BindingGene Expression