Cell LineageGenomeGenome, BacterialGenome, ViralGenome, PlantGenome, HumanPhylogenyGenome, MitochondrialCell DifferentiationSequence Analysis, DNAEvolution, MolecularBase SequenceGenome, FungalGenome SizeGenome, ArchaealMolecular Sequence DataStem CellsGenomicsGenome, InsectGenome, ProtozoanGene Expression Regulation, DevelopmentalGenetic VariationChromosome MappingGenome, ChloroplastTranscription FactorsAmino Acid SequenceSequence AlignmentSpecies SpecificityBiological EvolutionMice, TransgenicModels, GeneticPhenotypeMutationHematopoietic Stem CellsSyntenyOpen Reading FramesRecombination, GeneticDNA, MitochondrialGenome, PlastidMultigene FamilyGenome, HelminthCell LineTranscription, GeneticHomeodomain ProteinsComputational BiologyMice, Inbred C57BLCells, CulturedGene OrderGene DuplicationEmbryonic Stem CellsHuman Genome ProjectPolymerase Chain ReactionDNA, ViralDNA-Binding ProteinsCloning, MolecularGene Expression RegulationGerm CellsGene Expression ProfilingThymus GlandSequence Homology, Nucleic AcidEmbryo, MammalianSignal TransductionDNA PrimersConserved SequenceDatabases, GeneticRNA, MessengerMesodermChimeraRepetitive Sequences, Nucleic AcidDNA, BacterialChromosomes, Artificial, BacterialRNA, ViralBasic Helix-Loop-Helix Transcription FactorsEmbryo, NonmammalianGene ExpressionModels, BiologicalDNAMice, KnockoutSequence Homology, Amino AcidDNA Transposable ElementsGene Transfer, HorizontalFlow CytometryIn Situ HybridizationGenes, ViralCluster AnalysisMorphogenesisB-LymphocytesHematopoiesisUrochordataMolecular Sequence AnnotationGenotypeNucleic Acid HybridizationCaenorhabditis elegansSoftwareReverse Transcriptase Polymerase Chain ReactionPromoter Regions, GeneticCell DivisionMultipotent Stem CellsEctodermEndoderm