Gene DosageMolecular Sequence DataBase SequenceDosage Compensation, GeneticMutationRNA, MessengerTranscription, GeneticAmino Acid SequenceProtein BiosynthesisRibosomal ProteinsGenesCloning, MolecularEscherichia coliPhenotypeDNAGene Expression RegulationPlasmidsBacterial ProteinsGenes, BacterialKineticsAllelesSaccharomyces cerevisiaeDosage FormsPromoter Regions, GeneticGene DuplicationHeterozygoteCell LineCells, CulturedGene ExpressionGene DeletionPolymerase Chain ReactionChromosome MappingGenotypeGenes, FungalTranscription FactorsProtein Synthesis InhibitorsDNA ReplicationRNANucleic Acid HybridizationMice, TransgenicUbiquitin ThiolesteraseStereoisomerismDNA-Binding ProteinsX Chromosome InactivationCarrier ProteinsHomozygoteRestriction MappingSequence Analysis, DNAMolecular StructureX ChromosomeHaploinsufficiencyDNA PrimersLiverGenes, RegulatorMultigene FamilyTime FactorsDown SyndromeSequence Homology, Amino AcidPhylogenyCycloheximideDNA, BacterialRNA, RibosomalTrisomyGene Expression Regulation, DevelopmentalBlotting, NorthernChromosomes, Human, Pair 21ProteinsReverse Transcriptase Polymerase Chain ReactionRNA, BacterialSequence Homology, Nucleic AcidCell DivisionThiolester HydrolasesRNA, ViralGenes, ViralViral ProteinsGenetic Complementation TestSuppression, GeneticGene Expression Regulation, FungalGene AmplificationFungal ProteinsDose-Response Relationship, DrugCyclizationTemperatureOperonMice, KnockoutMembrane ProteinsAneuploidyExonsRecombinant ProteinsLeucineBlotting, SouthernSaccharomyces cerevisiae ProteinsGene Expression Regulation, BacterialTritiumModels, GeneticSignal TransductionMice, Inbred C57BLCrosses, GeneticSpecies SpecificitySequence Deletion