Stem CellsCell DifferentiationProtein PrecursorsPrecursor Cells, T-LymphoidHematopoietic Stem CellsCell LineageCells, CulturedThymus GlandOligodendrogliaGene Expression Regulation, DevelopmentalBone Marrow CellsVulvaMice, Inbred C57BLB-LymphocytesAmyloid beta-Protein PrecursorNeuronsCell DivisionNeural Stem CellsPrecursor Cells, B-LymphoidMice, TransgenicMolecular Sequence DataLymphopoiesisBasic Helix-Loop-Helix Transcription FactorsBone MarrowTranscription FactorsCell ProliferationSignal TransductionCell MovementMice, KnockoutT-LymphocytesImmunohistochemistryBase SequenceCell CountHomeodomain ProteinsFlow CytometryCerebellumEnzyme PrecursorsCell SeparationIn Situ HybridizationAmino Acid SequencePhenotypeSpleenRNA, MessengerReceptors, NotchNeurogliaNerve Tissue ProteinsClone CellsRNA PrecursorsAntigens, CD34Cell LineAntigens, CDInterleukin-7Erythroid Precursor CellsMutationHedgehog ProteinsNestinBromodeoxyuridineGranulocyte Precursor CellsSchwann CellsColony-Forming Units AssayMembrane ProteinsMice, Inbred BALB CNeurogenesisDNA-Binding ProteinsCell SurvivalEmbryo, NonmammalianTime FactorsMice, Inbred StrainsEmbryo, MammalianDendritic CellsNeural CrestHematopoiesisFetusChick EmbryoGene Expression RegulationMice, Mutant StrainsDrosophila ProteinsImmunophenotypingAnimals, NewbornGreen Fluorescent ProteinsAntibody-Producing CellsGonadsNucleic Acid PrecursorsMesodermLymphocyte ActivationStem Cell TransplantationBody PatterningTrans-ActivatorsMycobacterium lepraemuriumB-Lymphocyte SubsetsMonocyte-Macrophage Precursor CellsReverse Transcriptase Polymerase Chain ReactionGene ExpressionPlasma CellsAmyloid Precursor Protein SecretasesErythropoiesisAstrocytesDrosophilaGene Rearrangement, B-LymphocytePrecursor B-Cell Lymphoblastic Leukemia-Lymphoma