Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsTripletsAllelesRepetitive Sequences, Nucleic AcidMutationBase SequenceTandem Repeat SequencesMolecular Sequence DataSpinocerebellar AtaxiasGenomic InstabilityMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemDNAMinisatellite RepeatsPolymorphism, GeneticNerve Tissue ProteinsGenetic MarkersDinucleotide RepeatsPolymerase Chain ReactionNucleic Acid ConformationPedigreeAnticipation, GeneticGenetic VariationFlap EndonucleasesSequence Analysis, DNAFrontotemporal DementiaInverted Repeat SequencesDNA, SatelliteModels, GeneticGenetic Diseases, InbornAge of OnsetCerebellar AtaxiaGenotypeIntranuclear Inclusion BodiesChromosome FragilityChromosome MappingMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsDNA PrimersPhenotypeGenome, HumanHaplotypesGene FrequencyPregnancy, TripletNuclear ProteinsAmyotrophic Lateral SclerosisHeterozygoteGenetics, PopulationAmino Acid SequenceDNA RepairNeurodegenerative DiseasesPeptidesProteinsEvolution, MolecularGenetic LinkageExonsPhylogenyTranscription, GeneticReceptors, AndrogenDNA, PlantMice, TransgenicDNA ReplicationRecombination, GeneticRNA, MessengerDNA-Binding ProteinsSaccharomyces cerevisiaeExpressed Sequence TagsMutS Homolog 2 ProteinGenes, DominantRepetitive Sequences, Amino AcidGenomeDNA Mutational AnalysisGenetic LociNucleic Acid HeteroduplexesSpecies SpecificityChromosomes, Human, XMyoclonic Epilepsies, ProgressiveTandem Mass SpectrometryGenomic LibrarySequence DeletionCell LineDisease Models, AnimalRNASaccharomyces cerevisiae ProteinsX ChromosomeOligodeoxyribonucleotidesGenetic Testing