Trinucleotide Repeat ExpansionTrinucleotide RepeatsFriedreich AtaxiaDNA Repeat ExpansionSpinocerebellar DegenerationsMyotonic DystrophyFragile X SyndromeHuntington DiseaseFragile X Mental Retardation ProteinMicrosatellite RepeatsIron-Binding ProteinsGenetic MarkersAllelesKaryotypingChromosome BandingChromosome MappingChromosomesChromosome AberrationsMutationRepetitive Sequences, Nucleic AcidRing ChromosomesBase SequenceDNA, SatelliteChromosome DisordersChromosomes, HumanMolecular Sequence DataIn Situ Hybridization, FluorescenceSpinocerebellar AtaxiasMachado-Joseph DiseaseMosaicismX ChromosomePedigreeHeredodegenerative Disorders, Nervous SystemDNAPolymorphism, GeneticGenomic InstabilityNerve Tissue ProteinsPolymerase Chain ReactionDinucleotide RepeatsPhenotypeTrisomyMinisatellite RepeatsChromosomes, Human, Pair 20Tandem Repeat SequencesGenetic VariationTetrasomyChromosomes, Human, Pair 15Frontotemporal DementiaChromosomes, Human, 6-12 and XFlap EndonucleasesGenetic LinkageAbnormalities, MultipleAnticipation, GeneticChromosomes, Human, 1-3Sequence Analysis, DNANucleic Acid ConformationChromosomes, Human, Pair 6Chromosomes, Human, 21-22 and YChromosomes, Human, Pair 22Chromosome FragilityGenotypeInverted Repeat SequencesChromosomes, Human, Pair 9Models, GeneticSex ChromosomesChromosomes, Human, XAge of OnsetChromosomes, Human, Pair 1Cerebellar AtaxiaTurner SyndromeGenetic Diseases, InbornIntranuclear Inclusion BodiesChromosomes, Human, 16-18Intellectual DisabilityHaplotypesDNA PrimersMuscular Dystrophy, OculopharyngealRNA-Binding ProteinsChromosomes, Human, 13-15HeterozygoteChromosomes, Human, Pair 18Chromosome SegregationNuclear ProteinsColobomaAneuploidyGene FrequencyChromosomes, BacterialChromosomes, PlantGenome, HumanTranslocation, GeneticGenetics, PopulationChromosome DeletionChromosomes, Human, Pair 7Cell LineChromosomes, Human, Pair 11CentromereChromosomes, Human, Pair 17Chromosomes, Human, YAmyotrophic Lateral SclerosisRecombination, Genetic