Genetic MarkersHuntington DiseaseMinorsBiological MarkersGenetic CounselingGenetic TestingGenetic LinkageAmyotrophic Lateral SclerosisAsymptomatic DiseasesFacial Nerve InjuriesGenotypePedigreeHeterozygote DetectionMutationChromosome MappingAlzheimer DiseaseHeterozygoteAllelesSuperoxide DismutaseMicrosatellite RepeatsPolymorphism, Restriction Fragment LengthPolymorphism, GeneticMice, TransgenicDisease Models, AnimalGenetic Predisposition to DiseaseBrainHepatolenticular DegenerationPolymerase Chain ReactionPresenilin-1Adenomatous Polyposis ColiEarly DiagnosisPhenotypeAtrophyPolymorphism, Single NucleotideGenetic VariationMotor NeuronsTumor Markers, BiologicalGenetic Diseases, InbornMagnetic Resonance ImagingGenes, DominantLod ScoreAge of OnsetFacial NerveMolecular Sequence DataMotor Neuron DiseaseBase SequenceSpinocerebellar AtaxiasCaudate NucleusCase-Control StudiesDisease ProgressionDNA Mutational AnalysisModels, GeneticSequence Analysis, DNAGene FrequencyPrenatal DiagnosisSpinal CordNeuropsychological TestsHaplotypesGenetics, Populationvon Hippel-Lindau DiseasePositron-Emission TomographyGenes, APCQuantitative Trait LociNeonatal ScreeningParkinson DiseasePredictive Value of TestsNerve DegenerationFamily Healthtau ProteinsApolipoprotein E4Crosses, GeneticPhylogenyDNA ProbesImage Processing, Computer-AssistedAmyloid beta-PeptidesLinkage DisequilibriumRisk FactorsDNAAmyloid beta-Protein PrecursorMice, Inbred C57BLTime FactorsRecombination, GeneticNerve Tissue ProteinsAge FactorsPhysical Chromosome MappingCorpus StriatumGenome-Wide Association StudyDNA PrimersHLA-B15 AntigenExpressed Sequence TagsQuantitative Trait, HeritableDNA, MitochondrialSpecies SpecificityAnalysis of VarianceDNA, BacterialResedaceaePaternityBreedingHybridization, GeneticGenetic Loci