Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesChromosome MappingChromosomesMutationRepetitive Sequences, Nucleic AcidBase SequenceSpinocerebellar AtaxiasMolecular Sequence DataMachado-Joseph DiseaseHeredodegenerative Disorders, Nervous SystemNerve Tissue ProteinsGenetic MarkersX ChromosomeDNAPedigreePolymorphism, GeneticGenomic InstabilityDinucleotide RepeatsPolymerase Chain ReactionMinisatellite RepeatsTandem Repeat SequencesFrontotemporal DementiaFlap EndonucleasesChromosome BandingDNA, SatelliteGenetic VariationAnticipation, GeneticPeptidesIntranuclear Inclusion BodiesNucleic Acid ConformationChromosome FragilitySequence Analysis, DNAGenetic LinkageInverted Repeat SequencesAge of OnsetChromosomes, Human, Pair 9Sex ChromosomesGenotypeChromosomes, Human, XChromosome AberrationsModels, GeneticNuclear ProteinsPhenotypeCerebellar AtaxiaNeurodegenerative DiseasesChromosomes, Human, Pair 1Chromosomes, HumanGenetic Diseases, InbornMuscular Dystrophy, OculopharyngealHaplotypesRNA-Binding ProteinsDNA PrimersHeterozygoteChromosome SegregationChromosomes, BacterialAmyotrophic Lateral SclerosisGenome, HumanGene FrequencyChromosomes, Human, Pair 6Chromosomes, PlantChromosome DeletionChromosomes, Human, Pair 7Chromosomes, Human, Pair 11Genetics, PopulationChromosomes, Human, Pair 17Chromosomes, Human, YRecombination, GeneticChromosomes, MammalianProteinsChromosomes, Artificial, BacterialEvolution, MolecularDNA RepairChromosomes, Human, Pair 21Chromosomes, FungalDNA ReplicationChromosomes, Human, Pair 13Amino Acid SequenceReceptors, AndrogenChromosomes, Human, Pair 2Genes, DominantMice, TransgenicExonsSaccharomyces cerevisiaeChromosomes, Human, 6-12 and XTranscription, GeneticDNA, PlantDNA-Binding ProteinsChromosomes, Human, Pair 10Chromosomes, Human, Pair 16