Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesMutationBase SequenceRepetitive Sequences, Nucleic AcidGenomeTandem Repeat SequencesMolecular Sequence DataPoint MutationSpinocerebellar AtaxiasMachado-Joseph DiseasePedigreeSequence Analysis, DNAPolymerase Chain ReactionDNAHeredodegenerative Disorders, Nervous SystemPolymorphism, GeneticGenome, HumanGenomic InstabilityGenetic MarkersMinisatellite RepeatsNerve Tissue ProteinsGenetic VariationGenome, BacterialDinucleotide RepeatsMutation, MissenseNucleic Acid ConformationFrontotemporal DementiaFlap EndonucleasesGenome, ViralGenotypeAnticipation, GeneticChromosome MappingModels, GeneticInverted Repeat SequencesDNA, SatelliteAge of OnsetGenome, PlantHeterozygoteDNA PrimersCerebellar AtaxiaGenetic Diseases, InbornPhenotypeEvolution, MolecularIntranuclear Inclusion BodiesChromosome FragilityRNA-Binding ProteinsAmino Acid SequenceMuscular Dystrophy, OculopharyngealExonsGene FrequencyPhylogenyNuclear ProteinsGenetic LinkageDNA RepairFrameshift MutationGenetics, PopulationAmyotrophic Lateral SclerosisProteinsHaplotypesTranscription, GeneticDNA Mutational AnalysisNeurodegenerative DiseasesPeptidesRecombination, GeneticGenes, DominantDNA-Binding ProteinsSaccharomyces cerevisiaeDNA, PlantDNA ReplicationMice, TransgenicCell LineGenome, FungalSequence DeletionRNA, MessengerMutS Homolog 2 ProteinExpressed Sequence TagsReceptors, AndrogenGenetic TestingSpecies SpecificityGenome, MitochondrialRepetitive Sequences, Amino AcidGenetic LociGerm-Line MutationSaccharomyces cerevisiae ProteinsSequence AlignmentChromosomes, Human, XDisease Models, AnimalMutation RatePromoter Regions, Genetic