Cleavage Stage, OvumBlastocystBlastomeresEmbryo Culture TechniquesPolar BodiesEmbryo, MammalianEmbryo TransferPreimplantation DiagnosisEmbryonic DevelopmentEmbryo, NonmammalianEmbryo ImplantationFertilization in VitroCryopreservationOocytesPregnancyPregnancy RateZygoteMorulaEmbryonic and Fetal DevelopmentGene Expression Regulation, DevelopmentalVitrificationGastrulaBlastulaChick EmbryoSea UrchinsXenopus ProteinsXenopus laevisMolecular Sequence DataEmbryonic InductionUrochordataOvumFertilizationIn Situ HybridizationSperm Injections, IntracytoplasmicBody PatterningAmino Acid SequenceEctodermFetal ViabilityMesodermZebrafishBase SequenceXenopusGerm LayersAneuploidyMorphogenesisRNA, MessengerOctamer Transcription Factor-3Zebrafish ProteinsTranscription FactorsEctogenesisCell NucleusBlastocyst Inner Cell MassCulture TechniquesDNA CleavageTime FactorsOogenesisNuclear Transfer TechniquesCoffeaEmbryo LossEndodermCell DifferentiationCloning, OrganismPregnancy, MultipleMicroinjectionsTranscription, GeneticDNA-Binding ProteinsSignal TransductionHomeodomain ProteinsParthenogenesisCytoplasmMutationAnimals, Genetically ModifiedRNA CleavageMice, Inbred ICRSuperovulationCattleNervous SystemCloning, MolecularSequence Homology, Amino AcidEmbryo DispositionSubstrate SpecificityDNA, ComplementaryQuintupletsGene ExpressionFallopian TubesHydrolysisCells, CulturedEndopeptidasesMice, Inbred StrainsIn Situ Hybridization, FluorescenceDrosophila ProteinsCell LineageCulture MediaGerm CellsMice, Inbred CBAProtein Processing, Post-TranslationalEmbryonic Stem CellsDNA PrimersBinding SitesSpermatozoa