PenetrancePedigreeGenes, DominantHeterozygoteMutationPhenotypeGenetic LinkageGenetic Predisposition to DiseaseOptic Atrophy, Hereditary, LeberLod ScoreAllelesGerm-Line MutationFamily HealthGenotypeDNA Mutational AnalysisGenetic TestingGenes, BRCA1Genes, ModifierModels, GeneticAge of OnsetFounder EffectHirschsprung DiseaseChromosome MappingHaplotypesHomozygoteGenes, RecessiveJewsGenetic HeterogeneityGene FrequencyGenetic Diseases, InbornGenes, BRCA2Dystonia Musculorum DeformansMutation, MissenseFamilySyndromeGenetic MarkersHeterozygote DetectionCrosses, GeneticDystoniaBRCA2 ProteinAmyloid Neuropathies, FamilialGenetic CounselingGenetic VariationAngiomatosisHemochromatosisPolymorphism, Single NucleotideSyndactylyAbnormalities, MultipleLikelihood FunctionsProto-Oncogene Proteins c-retCraniofacial AbnormalitiesDNA, MitochondrialEpistasis, GeneticRetinoblastomaGenetics, MedicalChromosomes, Human, Pair 19RNA, Transfer, IleCardiomyopathy, Hypertrophic, FamilialBone Morphogenetic Protein Receptors, Type IIPrealbuminMyoclonusNeoplastic Syndromes, HereditaryInheritance PatternsBreast NeoplasmsMice, TransgenicOptic Atrophies, HereditaryExonsDystonic DisordersMice, Inbred C57BLRetinitis PigmentosaParaganglioma, Extra-AdrenalMicrosatellite RepeatsPoint MutationGenetic Association StudiesOvarian NeoplasmsEye Abnormalities