Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinExonsMicrosatellite RepeatsIron-Binding ProteinsAllelesChromosome MappingChromosomesMutationRepetitive Sequences, Nucleic AcidBase SequenceMolecular Sequence DataTandem Repeat SequencesSpinocerebellar AtaxiasMachado-Joseph DiseaseGenetic MarkersX ChromosomeDNAPedigreePolymorphism, GeneticHeredodegenerative Disorders, Nervous SystemPolymerase Chain ReactionMinisatellite RepeatsGenomic InstabilityNerve Tissue ProteinsDinucleotide RepeatsGenetic VariationDNA, SatelliteSequence Analysis, DNAFrontotemporal DementiaChromosome BandingFlap EndonucleasesAnticipation, GeneticNucleic Acid ConformationGenetic LinkageChromosome FragilityGenotypeInverted Repeat SequencesModels, GeneticChromosomes, Human, Pair 9Sex ChromosomesPhenotypeChromosomes, Human, XAge of OnsetChromosome AberrationsChromosomes, Human, Pair 1Cerebellar AtaxiaChromosomes, HumanDNA PrimersGenetic Diseases, InbornIntranuclear Inclusion BodiesHaplotypesHeterozygoteMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsNuclear ProteinsChromosome SegregationAmino Acid SequenceGenome, HumanGene FrequencyChromosomes, BacterialChromosome DeletionChromosomes, Human, Pair 6Chromosomes, PlantChromosomes, Human, Pair 7Chromosomes, Human, Pair 11Chromosomes, Human, YGenetics, PopulationChromosomes, Human, Pair 17Recombination, GeneticAmyotrophic Lateral SclerosisEvolution, MolecularChromosomes, MammalianProteinsNeurodegenerative DiseasesChromosomes, Artificial, BacterialPeptidesTranscription, GeneticDNA RepairChromosomes, Human, Pair 21Genes, DominantDNA ReplicationChromosomes, FungalChromosomes, Human, Pair 2Chromosomes, Human, Pair 13DNA-Binding ProteinsRNA, MessengerDNA, PlantDNA Mutational AnalysisChromosomes, Human, 6-12 and XSaccharomyces cerevisiaeChromosomes, Human, Pair 10Mice, Transgenic