Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinExonsMicrosatellite RepeatsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationBase SequenceTandem Repeat SequencesMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemMinisatellite RepeatsDNAPolymorphism, GeneticNerve Tissue ProteinsGenomic InstabilityDinucleotide RepeatsPolymerase Chain ReactionPedigreeGenetic MarkersFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticGenetic VariationNucleic Acid ConformationInverted Repeat SequencesDNA, SatelliteSequence Analysis, DNACerebellar AtaxiaAge of OnsetIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornGenotypeMuscular Dystrophy, OculopharyngealModels, GeneticRNA-Binding ProteinsDNA PrimersChromosome MappingPhenotypeHaplotypesGene FrequencyAmyotrophic Lateral SclerosisHeterozygoteNuclear ProteinsNeurodegenerative DiseasesGenetics, PopulationGenome, HumanDNA RepairPeptidesProteinsGenetic LinkageAmino Acid SequenceEvolution, MolecularTranscription, GeneticReceptors, AndrogenMice, TransgenicRNA, MessengerGenes, DominantDNA Mutational AnalysisMutS Homolog 2 ProteinDNA, PlantDNA ReplicationExpressed Sequence TagsRepetitive Sequences, Amino AcidDNA-Binding ProteinsIntronsSaccharomyces cerevisiaeRecombination, GeneticMyoclonic Epilepsies, ProgressivePhylogenyTandem Mass SpectrometryChromosomes, Human, XNucleic Acid HeteroduplexesGenetic LociSequence DeletionDisease Models, AnimalCell LineX ChromosomeGenetic Testing