Gene DosageSyndromeBloom SyndromeWerner SyndromeMutationMutation, MissensePoint MutationRecQ HelicasesFrameshift MutationPedigreeBardet-Biedl SyndromeHeterozygoteHomozygoteAbnormalities, MultiplePhenotypeMolecular Sequence DataDown SyndromeDNA HelicasesBase SequenceMicrotubule ProteinsKallmann SyndromeDosage Compensation, GeneticAllelesChromosome MappingDNA Mutational AnalysisMandibulofacial DysostosisExonsGerm-Line MutationGenotypePeutz-Jeghers SyndromeSmith-Lemli-Opitz SyndromeDwarfismAmino Acid SequenceExodeoxyribonucleasesPolymerase Chain ReactionChediak-Higashi SyndromeAdenosine TriphosphatasesGenes, RecessiveMetabolic Syndrome XNuclear ProteinsSequence DeletionConsanguinityWolfram SyndromeSequence Analysis, DNAProteinsGroup II ChaperoninsDNA-Binding ProteinsTranscription FactorsHermanski-Pudlak SyndromeGenetic LinkageMutation RateCloning, MolecularDNAGene DeletionRNA, MessengerNephrotic SyndromeAmino Acid SubstitutionCell LineMembrane ProteinsSequence Homology, Amino AcidCarrier ProteinsSjogren's SyndromeEscherichia coliSuppression, GeneticGenes, DominantGene Expression RegulationRecombination, GeneticX ChromosomeSaccharomyces cerevisiaeGoiterPolymorphism, Single-Stranded ConformationalPlasmidsMutagenesisPromoter Regions, GeneticDosage FormsEye AbnormalitiesGene DuplicationDiGeorge SyndromeCodon, NonsenseMicrosatellite RepeatsGenesDNA PrimersMutagenesis, Site-DirectedMice, TransgenicTranscription, GeneticX Chromosome InactivationTurner SyndromeGenes, FungalGenetic Complementation TestModels, GeneticTrisomyHaploinsufficiencyGenetic TestingDNA Topoisomerases, Type IMyelodysplastic SyndromesMice, Mutant StrainsGenetic Predisposition to DiseaseMice, Inbred C57BLChromosomes, Human, Pair 21Conserved Sequence