Trinucleotide Repeat ExpansionTrinucleotide RepeatsDinucleotide RepeatsMicrosatellite RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeDNA, SatelliteAllelesHuntington DiseaseFragile X Mental Retardation ProteinPolymorphism, GeneticGenetic MarkersRepetitive Sequences, Nucleic AcidBase SequenceIron-Binding ProteinsMolecular Sequence DataPolymerase Chain ReactionGenetic VariationDNA PrimersMutationDNASpinocerebellar AtaxiasPedigreeMachado-Joseph DiseaseTandem Repeat SequencesNucleic Acid ConformationMinisatellite RepeatsGene FrequencyGenotypeHeredodegenerative Disorders, Nervous SystemSequence Analysis, DNAGenetic LinkageChromosome MappingGenomic InstabilityNerve Tissue ProteinsInverted Repeat SequencesFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticMutS Homolog 2 ProteinGenome, HumanHaplotypesHeterozygotePhenotypeDNA RepairCerebellar AtaxiaAge of OnsetPolydeoxyribonucleotidesIntranuclear Inclusion BodiesBase Pair MismatchChromosome FragilityGenetic Diseases, InbornModels, GeneticMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsIntronsDNA-Binding ProteinsAmyotrophic Lateral SclerosisNuclear ProteinsSequence DeletionMicrosatellite InstabilityPromoter Regions, GeneticNeurodegenerative DiseasesRepetitive Sequences, Amino AcidGenetics, PopulationProteinsPeptidesPolymorphism, Restriction Fragment LengthAmino Acid SequenceGenetic Predisposition to DiseaseEvolution, MolecularReceptors, AndrogenTranscription, GeneticFlavin-Adenine DinucleotideDNA, PlantMice, TransgenicExonsDNA ReplicationGenes, DominantSaccharomyces cerevisiaeAnkyrin RepeatRecombination, GeneticCase-Control StudiesExpressed Sequence TagsRNA, MessengerNADMyoclonic Epilepsies, ProgressivePhylogenyDNA Mutational AnalysisDNA, NeoplasmChromosomes, Human, XGenetic LociNucleic Acid HeteroduplexesDisease Models, AnimalCell LineSpecies SpecificityX Chromosome