Embryo, MammalianClone CellsBlastocystEmbryonic DevelopmentEmbryo, NonmammalianEmbryonic and Fetal DevelopmentGene Expression Regulation, DevelopmentalChick EmbryoZygoteMammalsEmbryo ImplantationEmbryo Culture TechniquesMolecular Sequence DataBlastomeresCleavage Stage, OvumCulture TechniquesPregnancyMorulaBase SequenceAmino Acid SequenceEctodermBody PatterningEndodermTotipotent Stem CellsMorphogenesisYolk SacFibroblast Growth Factor 4Fertilization in VitroIn Situ HybridizationTranscription FactorsMesodermBlastocyst Inner Cell MassCloning, MolecularGerm LayersCell DifferentiationOocytesHomeodomain ProteinsRNA, MessengerMice, Inbred CBACell LineageOctamer Transcription Factor-3Tissue SurvivalSignal TransductionTrophoblastsEmbryonic Stem CellsEmbryo LossNeural CrestMice, Inbred ICRGene ExpressionMice, Inbred C57BLCattleGenomic ImprintingDNA-Binding ProteinsPhenotypeCell LineStem CellsTime FactorsDNA, ComplementaryModels, BiologicalSequence Homology, Amino AcidPluripotent Stem CellsMice, TransgenicCells, CulturedDNAGestational AgeMutationImmunohistochemistryEmbryo DispositionMice, KnockoutEpigenesis, GeneticZebrafishGastrulaCloning, OrganismCryopreservationCell MovementTranscription, GeneticSequence AlignmentTransfectionCricetinaeDrosophila ProteinsSequence Homology, Nucleic AcidDrosophilaDNA PrimersSpecies SpecificityZebrafish ProteinsPhylogenySequence Analysis, DNANuclear Transfer TechniquesPolymerase Chain ReactionEmbryo ResearchSingle Embryo TransferGene Expression RegulationRecombinant ProteinsEctogenesisXenopus ProteinsCell NucleusPlasmidsGenesProteinsNucleic Acid Hybridization