Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsExonsIron-Binding ProteinsAllelesRepetitive Sequences, Nucleic AcidMutationBase SequenceTandem Repeat SequencesMolecular Sequence DataSpinocerebellar AtaxiasMinisatellite RepeatsMachado-Joseph DiseaseGenetic MarkersPolymorphism, GeneticDinucleotide RepeatsHeredodegenerative Disorders, Nervous SystemDNANerve Tissue ProteinsGenomic InstabilityPolymerase Chain ReactionPedigreeGenetic VariationFrontotemporal DementiaFlap EndonucleasesSequence Analysis, DNAAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesDNA, SatelliteGenotypeCerebellar AtaxiaAge of OnsetChromosome MappingIntranuclear Inclusion BodiesChromosome FragilityGenetic Diseases, InbornExpressed Sequence TagsModels, GeneticDNA PrimersMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsDNA, PlantPhenotypeGene FrequencyGenetics, PopulationGenetic LinkageHaplotypesAmyotrophic Lateral SclerosisHeterozygoteNuclear ProteinsNeurodegenerative DiseasesGenome, HumanDNA RepairPeptidesProteinsEvolution, MolecularGenome, PlantAmino Acid SequenceTranscription, GeneticReceptors, AndrogenMice, TransgenicPhylogenyRNA, MessengerGenes, DominantDNA Mutational AnalysisMutS Homolog 2 ProteinGenetic LociDNA ReplicationRepetitive Sequences, Amino AcidDNA-Binding ProteinsIntronsSaccharomyces cerevisiaeRecombination, GeneticSpecies SpecificityMyoclonic Epilepsies, ProgressiveTandem Mass SpectrometryChromosomes, Human, XNucleic Acid HeteroduplexesSequence DeletionDisease Models, AnimalCell LineX ChromosomeGenetic Testing