Embryonic Stem CellsNuclear Transfer TechniquesStem CellsCloning, OrganismCell DifferentiationEmbryo, MammalianPluripotent Stem CellsStem Cell TransplantationBlastocystEmbryo ResearchCell Culture TechniquesOctamer Transcription Factor-3Induced Pluripotent Stem CellsCell LineageEmbryonic and Fetal DevelopmentHematopoietic Stem CellsOocytesCell LineTeratomaHematopoietic Stem Cell TransplantationCell NucleusAdult Stem CellsCloning, MolecularCells, CulturedNeural Stem CellsEmbryoid BodiesStage-Specific Embryonic AntigensGene Expression Regulation, DevelopmentalEmbryo TransferGerm LayersTransplantation, HomologousFeeder CellsSOXB1 Transcription FactorsTotipotent Stem CellsLiver TransplantationEndodermHomeodomain ProteinsEmbryonic DevelopmentCell ProliferationMultipotent Stem CellsStem Cell ResearchKaryotypingMesenchymal Stromal CellsMesenchymal Stem Cell TransplantationCytoplasmStem Cell NicheEmbryo Culture TechniquesGene Expression ProfilingBone Morphogenetic Protein 4Coculture TechniquesReverse Transcriptase Polymerase Chain ReactionBlastomeresBiological MarkersBone Marrow TransplantationFlow CytometryTransplantation, AutologousRegenerative MedicineCryopreservationMice, SCIDEmbryo ImplantationCell SeparationBeginning of Human LifeActivinsBase SequenceKidney TransplantationCell TransplantationMolecular Sequence DataTranscription FactorsSignal TransductionNuclear ReprogrammingEmbryo DispositionTime FactorsGreen Fluorescent ProteinsImmunohistochemistryGene Expression RegulationHematopoiesisStem Cell FactorMyocytes, CardiacFertilization in VitroNeuronsCell SurvivalNeural PlateGene ExpressionMesodermEmbryo, NonmammalianNodal ProteinRNA, MessengerFibroblastsPhenotypeGerm CellsLentivirusGene TargetingPregnancyEpigenesis, GeneticTissue EngineeringResearch Embryo CreationCulture Media, Serum-FreeFetal Stem CellsChimeraMice, Inbred C57BL