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 ChromosomeHeredodegenerative Disorders, Nervous SystemDNAPedigreePolymorphism, GeneticGenomic InstabilityNerve Tissue ProteinsDinucleotide RepeatsPolymerase Chain ReactionMinisatellite RepeatsGenetic VariationTandem Repeat SequencesFrontotemporal DementiaFlap EndonucleasesAnticipation, GeneticDNA, SatelliteChromosome BandingSequence Analysis, DNANucleic Acid ConformationChromosome FragilityGenetic LinkageInverted Repeat SequencesChromosomes, Human, Pair 9GenotypeModels, GeneticSex ChromosomesAge of OnsetPhenotypeChromosomes, Human, XChromosome AberrationsCerebellar AtaxiaChromosomes, Human, Pair 1Intranuclear Inclusion BodiesChromosomes, HumanGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealHaplotypesRNA-Binding ProteinsDNA PrimersHeterozygoteNuclear ProteinsChromosome SegregationChromosomes, BacterialGenome, HumanGene FrequencyGenetics, PopulationChromosomes, PlantChromosomes, Human, Pair 6Amyotrophic Lateral SclerosisChromosome DeletionChromosomes, Human, YChromosomes, Human, Pair 7Chromosomes, Human, Pair 11Chromosomes, Human, Pair 17Recombination, GeneticEvolution, MolecularChromosomes, MammalianNeurodegenerative DiseasesProteinsChromosomes, Artificial, BacterialDNA RepairPeptidesChromosomes, Human, Pair 21DNA ReplicationChromosomes, FungalMice, TransgenicGenes, DominantChromosomes, Human, Pair 13Chromosomes, Human, Pair 2Amino Acid SequenceDNA, PlantChromosomes, Human, 6-12 and XDNA-Binding ProteinsSaccharomyces cerevisiaeTranscription, GeneticChromosomes, Human, Pair 10ExonsReceptors, AndrogenChromosomes, Human, Pair 16