Embryonic Stem CellsTwinning, MonozygoticGenetic DeterminismCloning, OrganismCell DifferentiationClone CellsStem CellsPluripotent Stem CellsHematopoietic Stem CellsSperm-Ovum InteractionsCell Culture TechniquesEmbryo ResearchOctamer Transcription Factor-3Stem Cell TransplantationEmbryo, MammalianFertilization in VitroInduced Pluripotent Stem CellsCell LineCell LineageTeratomaCloning, MolecularEmbryoid BodiesStage-Specific Embryonic AntigensCells, CulturedSOXB1 Transcription FactorsEndodermFeeder CellsGene Expression Regulation, DevelopmentalGerm LayersNeural Stem CellsKaryotypingHomeodomain ProteinsTotipotent Stem CellsBone Morphogenetic Protein 4Cell ProliferationAdult Stem CellsGene Expression ProfilingStem Cell ResearchReverse Transcriptase Polymerase Chain ReactionCoculture TechniquesActivinsFlow CytometryBase SequenceBiological MarkersMolecular Sequence DataMice, SCIDMultipotent Stem CellsRegenerative MedicineNeural PlateCell SeparationBlastocystMyocytes, CardiacMesenchymal Stromal CellsGene Expression RegulationNuclear ReprogrammingGreen Fluorescent ProteinsTranscription FactorsSignal TransductionNodal ProteinNeuronsEmbryo Culture TechniquesGene TargetingCell SurvivalGene ExpressionImmunohistochemistryEpigenesis, GeneticCulture Media, Serum-FreeStem Cell NicheRNA, MessengerFibroblastsLentivirusHematopoietic Stem Cell TransplantationHematopoiesisMesenchymal Stem Cell TransplantationPhenotypeCulture Media, ConditionedAmino Acid SequenceSOXF Transcription FactorsGerm CellsOligonucleotide Array Sequence AnalysisX Chromosome InactivationMesodermTissue EngineeringEmbryonic DevelopmentTransgenesGenetic VectorsChimeraCell ShapeBone Morphogenetic ProteinsTime FactorsBlastocyst Inner Cell MassCell DedifferentiationModels, BiologicalCell TransplantationDehumanizationEmbryonal Carcinoma Stem CellsCulture MediaLeukemia Inhibitory FactorBeginning of Human LifeMice, Inbred C57BL