Blastocyst Inner Cell MassBlastocystEmbryonic DevelopmentMorulaEmbryo Culture TechniquesTrophoblastsEmbryonic and Fetal DevelopmentEmbryo, MammalianEmbryo ImplantationBlastomeresOctamer Transcription Factor-3Cleavage Stage, OvumEmbryo TransferFertilization in VitroEndodermEctodermPregnancyZygoteChimeraEmbryonic Stem CellsGene Expression Regulation, DevelopmentalEctogenesisGerm LayersParthenogenesisNuclear Transfer TechniquesGATA6 Transcription FactorCulture TechniquesEmbryo Implantation, DelayedCloning, OrganismCell LineageCell CountEar, InnerOocytesTotipotent Stem CellsCell DifferentiationFetal ViabilityHMGB ProteinsFibroblast Growth Factor 4CryopreservationPluripotent Stem CellsZona PellucidaCulture MediaMice, Inbred StrainsCells, CulturedSOXF Transcription FactorsMice, Inbred CBACell Aggregation