Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionMyotonic DystrophyHeredodegenerative Disorders, Nervous SystemFragile X SyndromeFragile X Mental Retardation ProteinSpinocerebellar DegenerationsHuntington DiseaseIron-Binding ProteinsAllelesTripletsRepetitive Sequences, Nucleic AcidMutationSpinocerebellar AtaxiasAtaxiaBase SequenceFrontotemporal DementiaTremorNerve Tissue ProteinsMachado-Joseph DiseaseMolecular Sequence DataAnticipation, GeneticDNANucleic Acid ConformationGenomic InstabilityFlap EndonucleasesPedigreeIntranuclear Inclusion BodiesRNA-Binding ProteinsTandem Repeat SequencesGenetic Diseases, InbornMicrosatellite RepeatsMinisatellite RepeatsAmyotrophic Lateral SclerosisInverted Repeat SequencesHeterozygoteAge of OnsetCerebellar AtaxiaPolymerase Chain ReactionPrimary Ovarian InsufficiencyMuscular Dystrophy, OculopharyngealPhenotypeNeurodegenerative DiseasesChromosome FragilityModels, GeneticPolymorphism, GeneticNuclear ProteinsProteinsPeptidesMyoclonic Epilepsies, ProgressiveSequence Analysis, DNADNA RepairRepetitive Sequences, Amino AcidRNA, MessengerMice, TransgenicDNA PrimersGene Knock-In TechniquesTranscription, GeneticDNA ReplicationGenotypeExonsAmino Acid SequenceGenome, HumanPregnancy, TripletDNA-Binding ProteinsUnverricht-Lundborg SyndromeDisease Models, AnimalGenetic TestingMyotonic DisordersNucleic Acid HeteroduplexesGenes, DominantReceptors, Androgen