Trinucleotide Repeat ExpansionTrinucleotide RepeatsPolymorphism, GeneticFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsAllelesIron-Binding ProteinsMutationRepetitive Sequences, Nucleic AcidBase SequencePolymorphism, Single NucleotideMolecular Sequence DataSpinocerebellar AtaxiasGenomic InstabilityMachado-Joseph DiseasePolymerase Chain ReactionGenetic MarkersDNAGenetic VariationHeredodegenerative Disorders, Nervous SystemGene FrequencyDinucleotide RepeatsSequence Analysis, DNAMinisatellite RepeatsNerve Tissue ProteinsGenotypePedigreeTandem Repeat SequencesHaplotypesFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationInverted Repeat SequencesDNA, SatelliteModels, GeneticAge of OnsetChromosome MappingPhenotypeGenetic Predisposition to DiseaseDNA PrimersCerebellar AtaxiaGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosome FragilityHeterozygoteGenome, HumanMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsGenetics, PopulationGenetic LinkageDNA RepairExonsNuclear ProteinsAmyotrophic Lateral SclerosisEvolution, MolecularNeurodegenerative DiseasesPhylogenyCase-Control StudiesProteinsPeptidesAmino Acid SequenceDNA, PlantDNA Mutational AnalysisReceptors, AndrogenTranscription, GeneticGenetic LociExpressed Sequence TagsRecombination, GeneticMice, TransgenicGenes, DominantLinkage DisequilibriumDNA-Binding ProteinsMutS Homolog 2 ProteinDNA ReplicationPromoter Regions, GeneticRNA, MessengerSpecies SpecificityGenomeSaccharomyces cerevisiaeGenetic TestingChromosomes, Human, XMyoclonic Epilepsies, ProgressiveGenomic LibraryIntronsNucleic Acid HeteroduplexesRepetitive Sequences, Amino AcidSequence DeletionX ChromosomeDisease Models, AnimalCell LineGenome, PlantGenomics