MorulaBlastocystEmbryo, MammalianEmbryonic DevelopmentEmbryonic and Fetal DevelopmentBlastomeresFertilization in VitroEmbryo ImplantationCleavage Stage, OvumPregnancyZygoteEmbryo, NonmammalianEmbryo TransferChick EmbryoCloning, OrganismOocytesFetal ViabilityGene Expression Regulation, DevelopmentalEmbryo ResearchCulture TechniquesParthenogenesisFallopian TubesCryopreservationEmbryo Culture TechniquesNuclear Transfer TechniquesEmbryo DispositionPersonhoodPregnancy RateCulture MediaCattleBeginning of Human LifeTime FactorsEmbryo LossVitrificationMice, Inbred StrainsSperm Injections, IntracytoplasmicEmbryo Implantation, DelayedTrophoblastsPreimplantation DiagnosisEctogenesisRNA, MessengerSingle Embryo TransferFertilizationEndometriumZona PellucidaLifeMosaicismEmbryologyValue of LifeCells, CulturedIn Situ HybridizationCochlear ImplantationIncubatorsAnatomy, ArtisticTheologyPregnancy OutcomeReproductive TechniquesMesodermMorphogenesisGestational AgeUterusResearch Embryo CreationLens Implantation, IntraocularEctodermZebrafishMolecular Sequence DataPrenatal InjuriesEthylene GlycolCryoprotective AgentsGastrulaCell DifferentiationFetal ResearchBody PatterningYolk SacAneuploidyCell NucleusBase SequenceOctamer Transcription Factor-3MoralsSuperovulationGerm LayersHomeodomain ProteinsTranscription FactorsOvumChimeraHuman CharacteristicsMice, Inbred ICRImmunohistochemistryTreatment OutcomeGamete Intrafallopian TransferCell CountMicroinjectionsNotochordPacemaker, ArtificialFetusEmbryonic Stem CellsZebrafish ProteinsStentsGene ExpressionEndoderm