Cloning, OrganismBioethicsEmbryo Culture TechniquesEmbryonic Stem CellsReproductive Techniques, AssistedStem CellsPluripotent Stem CellsBlastocystInduced Pluripotent Stem CellsStem Cell TransplantationEmbryo, MammalianFeeder CellsHematopoietic Stem CellsCloning, MolecularCell DifferentiationAdult Stem CellsCell Culture TechniquesHematopoietic Stem Cell TransplantationStem Cell NicheNeural Stem CellsEmbryo ResearchEmbryo ImplantationMultipotent Stem CellsMesenchymal Stem Cell TransplantationBlastomeresEmbryonic DevelopmentCell LineMesenchymal Stromal CellsStem Cell FactorCell LineageEmbryo, NonmammalianMolecular Sequence DataBase SequenceFertilization in VitroCells, CulturedChick EmbryoStem Cell ResearchGene Expression Regulation, DevelopmentalEmbryonic and Fetal DevelopmentPlant StemsPregnancyFetal Stem CellsAmino Acid SequenceOctamer Transcription Factor-3PersonhoodCryopreservationBeginning of Human LifeTotipotent Stem CellsCell ProliferationEmbryo DispositionHematopoietic Stem Cell MobilizationNeoplastic Stem CellsBone Marrow CellsRegenerationCell SeparationEmbryo TransferRNA, MessengerHematopoiesisRegenerative MedicineMice, Inbred C57BLSignal TransductionTime FactorsPhenotypeHomeodomain ProteinsGene ExpressionFlow CytometryGerm LayersDNA, ComplementaryTranscription FactorsZygoteImmunohistochemistryTransplantation, AutologousModels, BiologicalCoculture TechniquesGene Expression ProfilingPeripheral Blood Stem Cell TransplantationAntigens, CD34Sequence Homology, Amino AcidCulture TechniquesReverse Transcriptase Polymerase Chain ReactionSOXB1 Transcription FactorsGerm CellsTransplantation, HomologousValue of LifeCell DivisionMorulaGene Expression RegulationPregnancy RatePreimplantation DiagnosisBiological MarkersMesodermSpermatogoniaResearch Embryo CreationMosaicismColony-Forming Units AssayOocytesLifeCell- and Tissue-Based TherapyNuclear ReprogrammingMice, SCID