Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesChromosome MappingChromosomesMutationRepetitive Sequences, Nucleic AcidBase SequenceMolecular Sequence DataSpinocerebellar AtaxiasMachado-Joseph DiseaseGenetic MarkersX ChromosomePedigreeDNAHeredodegenerative Disorders, Nervous SystemPolymorphism, GeneticGenomic InstabilityPolymerase Chain ReactionNerve Tissue ProteinsDinucleotide RepeatsMinisatellite RepeatsTandem Repeat SequencesGenetic VariationFrontotemporal DementiaDNA, SatelliteAnticipation, GeneticFlap EndonucleasesChromosome BandingSequence Analysis, DNANucleic Acid ConformationGenetic LinkageChromosome FragilityGenotypeInverted Repeat SequencesPhenotypeAge of OnsetChromosomes, Human, Pair 9Models, GeneticSex ChromosomesChromosome AberrationsChromosomes, Human, XCerebellar AtaxiaChromosomes, Human, Pair 1Chromosomes, HumanRNA-Binding ProteinsGenetic Diseases, InbornIntranuclear Inclusion BodiesHaplotypesDNA PrimersGerm-Line MutationNuclear ProteinsMuscular Dystrophy, OculopharyngealChromosome SegregationHeterozygoteGene FrequencyGenome, HumanChromosomes, BacterialChromosome DeletionChromosomes, Human, Pair 6Recombination, GeneticChromosomes, PlantChromosomes, Human, Pair 7Chromosomes, Human, Pair 11Genetics, PopulationChromosomes, Human, Pair 17Amyotrophic Lateral SclerosisChromosomes, Human, YChromosomes, MammalianNeurodegenerative DiseasesDNA RepairProteinsChromosomes, Artificial, BacterialEvolution, MolecularGerm CellsAmino Acid SequenceExonsDNA Mutational AnalysisGenes, DominantChromosomes, Human, Pair 21DNA ReplicationDNA-Binding ProteinsChromosomes, FungalChromosomes, Human, Pair 13Chromosomes, Human, Pair 2MutS Homolog 2 ProteinPeptidesTranscription, GeneticMice, TransgenicChromosomes, Human, 6-12 and XDNA, Plant