Cloning, OrganismBioethicsEmbryo Culture TechniquesEmbryo ResearchEmbryonic Stem CellsTwinning, MonozygoticGenetic DeterminismStem CellsReproductive Techniques, AssistedCloning, MolecularNuclear Transfer TechniquesEmbryo, MammalianPluripotent Stem CellsBlastocystInduced Pluripotent Stem CellsStem Cell TransplantationHematopoietic Stem CellsFeeder CellsCell DifferentiationAdult Stem CellsCell Culture TechniquesEmbryo, NonmammalianMolecular Sequence DataEmbryo ImplantationBase SequenceChick EmbryoHematopoietic Stem Cell TransplantationEmbryonic DevelopmentStem Cell NicheAmino Acid SequenceNeural Stem CellsBlastomeresCell LineMultipotent Stem CellsMesenchymal Stem Cell TransplantationCell LineageGene Expression Regulation, DevelopmentalMesenchymal Stromal CellsFertilization in VitroStem Cell FactorEmbryonic and Fetal DevelopmentDNA, ComplementaryPregnancySequence Homology, Amino AcidCells, CulturedCryopreservationStem Cell ResearchRNA, MessengerEmbryo DispositionPlant StemsOctamer Transcription Factor-3PersonhoodFetal Stem CellsBeginning of Human LifeTotipotent Stem CellsGene ExpressionCell ProliferationZygoteHematopoietic Stem Cell MobilizationTranscription FactorsPhenotypeNeoplastic Stem CellsSequence AlignmentHomeodomain ProteinsBone Marrow CellsMorulaTime FactorsOocytesEmbryo LossMice, Inbred C57BLDNAIn Situ HybridizationCulture Techniques