Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinIron-Binding ProteinsAllelesMutationRepetitive Sequences, Nucleic AcidGenomeBase SequenceGenetic Diseases, InbornMachado-Joseph DiseaseSpinocerebellar AtaxiasMolecular Sequence DataGenome, HumanHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsPedigreeGenomic InstabilityMicrosatellite RepeatsGenome, BacterialDNAFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationGenome, ViralInverted Repeat SequencesTandem Repeat SequencesSequence Analysis, DNAMinisatellite RepeatsAge of OnsetPolymerase Chain ReactionCerebellar AtaxiaChromosome MappingIntranuclear Inclusion BodiesPhenotypeChromosome FragilityModels, GeneticMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsPolymorphism, GeneticGenetic MarkersGenetic LinkageGenome, PlantNuclear ProteinsProteinsAmyotrophic Lateral SclerosisDiseaseNeurodegenerative DiseasesGenotypeGenes, DominantPeptidesDNA RepairAmino Acid SequenceGenetic VariationDNA PrimersHaplotypesExonsTranscription, GeneticEvolution, MolecularMice, TransgenicReceptors, AndrogenHeterozygoteDNA ReplicationGene FrequencyDNA Mutational AnalysisRecombination, GeneticRepetitive Sequences, Amino AcidSaccharomyces cerevisiaeGenome, MitochondrialGenome, FungalRNA, MessengerChromosomes, Human, XDNA-Binding ProteinsPhylogenyGenetic TestingDisease Models, AnimalMyoclonic Epilepsies, ProgressiveCell LineDNA, SatelliteMutS Homolog 2 ProteinGenetic Predisposition to DiseaseNucleic Acid HeteroduplexesX Chromosome