Cell DifferentiationEmbryo, MammalianEmbryo, NonmammalianChick EmbryoGene Expression Regulation, DevelopmentalTranscription FactorsCells, CulturedEmbryo ImplantationSignal TransductionStem CellsRNA, MessengerCell LineMolecular Sequence DataEmbryonic DevelopmentBlastocystCell DivisionGene Expression RegulationCell LineageEmbryonic Stem CellsDNA-Binding ProteinsTretinoinBase SequenceEmbryonic and Fetal DevelopmentHomeodomain ProteinsMorphogenesisPhenotypeIn Situ HybridizationTranscription, GeneticGene ExpressionCell ProliferationImmunohistochemistryPregnancyMesodermRepressor ProteinsReverse Transcriptase Polymerase Chain ReactionTrans-ActivatorsAmino Acid SequenceBasic Helix-Loop-Helix Transcription FactorsSex DifferentiationModels, BiologicalPromoter Regions, GeneticMutationMice, Inbred C57BLHL-60 CellsTime FactorsCell CycleGene Expression ProfilingMice, KnockoutNuclear ProteinsTumor Cells, CulturedEmbryo LossMuscle DevelopmentZebrafishMice, TransgenicEndodermDimethyl SulfoxideEpigenesis, GeneticTransfectionOsteogenesisDNA PrimersBody PatterningNeuronsOsteoblastsEpithelial CellsDown-RegulationBlotting, WesternApoptosisBlastomeresFertilization in VitroReceptors, NotchProto-Oncogene ProteinsCell NucleusCleavage Stage, OvumMyoD ProteinDrosophila ProteinsZebrafish ProteinsMesenchymal Stromal CellsEpitheliumKeratinocytesInhibitor of Differentiation Protein 1DNAUp-RegulationFluorescent Antibody TechniqueHistonesFlow CytometryCell Culture TechniquesProtein BindingMembrane ProteinsHematopoietic Stem CellsProteinsBone Marrow CellsNerve Tissue ProteinsEpidermisDrosophilaOligonucleotide Array Sequence AnalysisPolymerase Chain ReactionAdipocytesLeukemia, Erythroblastic, AcuteCell Transformation, NeoplasticCloning, Molecular