Stem CellsEmbryo, MammalianEmbryo, NonmammalianBlastocystEmbryonic DevelopmentEmbryo ImplantationEmbryonic Stem CellsChick EmbryoBlastomeresEmbryo ResearchStem Cell TransplantationPluripotent Stem CellsEmbryonic and Fetal DevelopmentFertilization in VitroHematopoietic Stem CellsGene Expression Regulation, DevelopmentalAdult Stem CellsCell DifferentiationPregnancyZygoteEmbryo Culture TechniquesInduced Pluripotent Stem CellsCryopreservationOocytesEmbryo DispositionHematopoietic Stem Cell TransplantationStem Cell NicheCell LineageMolecular Sequence DataNeural Stem CellsPersonhoodMorulaBeginning of Human LifeCleavage Stage, OvumBase SequenceEmbryo LossMultipotent Stem CellsCloning, OrganismCulture TechniquesEmbryo TransferMesenchymal Stem Cell TransplantationMesenchymal Stromal CellsOctamer Transcription Factor-3EctogenesisCloning, MolecularIn Situ HybridizationAmino Acid SequenceMesodermStem Cell FactorTotipotent Stem CellsCells, CulturedRNA, MessengerPregnancy RateHomeodomain ProteinsCell Culture TechniquesGerm LayersBody PatterningTranscription FactorsCell LineTime FactorsGastrulaEmbryologyPreimplantation DiagnosisGerm CellsSperm Injections, IntracytoplasmicZebrafishMorphogenesisMosaicismFertilizationPhenotypeSignal TransductionSingle Embryo TransferStem Cell ResearchImmunohistochemistryModels, BiologicalValue of LifeLifeCulture MediaXenopus ProteinsNuclear Transfer TechniquesMutationEctodermGene ExpressionMice, Inbred C57BLEndodermTrophoblastsResearch Embryo CreationDrosophila ProteinsPlant StemsAnatomy, ArtisticFetal Stem CellsParthenogenesisDrosophilaTheologyGestational AgeIncubatorsGene Expression ProfilingCell ProliferationCell DivisionFetal Viability