FertilizationFertilization in VitroStem CellsEmbryo, MammalianEmbryonic Stem CellsBlastocystEmbryo ImplantationEmbryonic DevelopmentEmbryo ResearchStem Cell TransplantationBlastomeresHematopoietic Stem CellsPluripotent Stem CellsAdult Stem CellsEmbryo TransferPregnancyEmbryo, NonmammalianOocytesEmbryonic and Fetal DevelopmentSpermatozoaZygoteCryopreservationCell DifferentiationInduced Pluripotent Stem CellsEmbryo Culture TechniquesSperm-Ovum InteractionsChick EmbryoHematopoietic Stem Cell TransplantationPregnancy RateStem Cell NichePersonhoodOvumSperm Injections, IntracytoplasmicNeural Stem CellsBeginning of Human LifeGene Expression Regulation, DevelopmentalZona PellucidaCell LineageEmbryo DispositionMultipotent Stem CellsMesenchymal Stem Cell TransplantationMolecular Sequence DataMesenchymal Stromal CellsStem Cell FactorCells, CulturedCleavage Stage, OvumCloning, OrganismBase SequenceCell Culture TechniquesTotipotent Stem CellsMorulaCulture TechniquesOctamer Transcription Factor-3Preimplantation DiagnosisCloning, MolecularLifeTime FactorsSea UrchinsReproductive TechniquesCell LineValue of LifeInfertility, FemaleAmino Acid SequenceEctogenesisMosaicismPregnancy OutcomeStem Cell ResearchSperm MotilityGerm LayersPlant StemsCulture MediaParthenogenesisTheologyRNA, MessengerIncubatorsFetal Stem CellsModels, BiologicalEmbryologyCryoprotective AgentsAnatomy, ArtisticResearch Embryo CreationCell ProliferationSingle Embryo TransferPhenotypeImmunohistochemistryFetal ViabilitySignal TransductionGerm CellsHomeodomain ProteinsMice, Inbred C57BLAcrosomeMicroinjectionsVitrificationTranscription FactorsReproductive Techniques, AssistedCell SeparationEthylene GlycolFallopian TubesCoculture TechniquesEmbryo Loss