Cloning, OrganismBioethicsReproductive Techniques, AssistedEmbryo, MammalianNuclear Transfer TechniquesStem CellsBlastocystCloning, MolecularEmbryonic DevelopmentEmbryo ImplantationEmbryonic Stem CellsEmbryo, NonmammalianEmbryo Culture TechniquesBlastomeresChick EmbryoEctogenesisEmbryonic and Fetal DevelopmentFertilization in VitroEmbryo ResearchStem Cell TransplantationGene Expression Regulation, DevelopmentalParthenogenesisHematopoietic Stem CellsMolecular Sequence DataEmbryo TransferPluripotent Stem CellsOocytesPregnancyMorulaBase SequenceAdult Stem CellsCell DifferentiationAmino Acid SequenceNuclear ReprogrammingInduced Pluripotent Stem CellsCryopreservationOctamer Transcription Factor-3