Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsAllelesChromosome MappingChromosomesMutationRepetitive Sequences, Nucleic AcidBase SequenceGenetic VariationMolecular Sequence DataSpinocerebellar AtaxiasGenetic MarkersMachado-Joseph DiseaseX ChromosomePolymorphism, GeneticDNAHeredodegenerative Disorders, Nervous SystemPedigreeGenomic InstabilityNerve Tissue ProteinsPolymerase Chain ReactionDinucleotide RepeatsMinisatellite RepeatsTandem Repeat SequencesFrontotemporal DementiaSequence Analysis, DNADNA, SatelliteFlap EndonucleasesChromosome BandingAnticipation, GeneticGenotypeNucleic Acid ConformationGenetic LinkageChromosome FragilityInverted Repeat SequencesModels, GeneticPhenotypeChromosomes, Human, Pair 9Sex ChromosomesAge of OnsetChromosomes, Human, XChromosome AberrationsCerebellar AtaxiaChromosomes, Human, Pair 1HaplotypesChromosomes, HumanGenetic Diseases, InbornIntranuclear Inclusion BodiesMuscular Dystrophy, OculopharyngealDNA PrimersRNA-Binding ProteinsHeterozygoteGene FrequencyGenome, HumanChromosome SegregationGenetics, PopulationNuclear ProteinsChromosomes, BacterialChromosomes, PlantChromosomes, Human, Pair 6Chromosome DeletionChromosomes, Human, Pair 7Chromosomes, Human, YRecombination, GeneticChromosomes, Human, Pair 11Amyotrophic Lateral SclerosisEvolution, MolecularChromosomes, Human, Pair 17Chromosomes, MammalianNeurodegenerative DiseasesChromosomes, Artificial, BacterialProteinsDNA RepairChromosomes, Human, Pair 21Chromosomes, FungalDNA ReplicationGenes, DominantChromosomes, Human, Pair 2Amino Acid SequencePeptidesChromosomes, Human, Pair 13ExonsChromosomes, Human, 6-12 and XPhylogenyDNA, PlantChromosomes, Human, Pair 10Transcription, GeneticSaccharomyces cerevisiaeDNA-Binding ProteinsChromosomes, Human, Pair 16Chromosomes, Human, Pair 22