HomozygoteHeterozygoteGenotypePolymorphism, GeneticAllelesGene FrequencyGenetic Predisposition to DiseasePolymorphism, Single NucleotideHemochromatosisMutationPhenotypeHaplotypesHeterozygote DetectionGenetic VariationCase-Control StudiesGenes, LethalMice, Mutant StrainsApolipoprotein E2Genes, RecessiveCatechol O-MethyltransferaseAlbinismHyperlipoproteinemia Type IIPedigreeMethylenetetrahydrofolate Reductase (NADPH2)Polymerase Chain ReactionPolymorphism, Restriction Fragment LengthCrosses, GeneticGenetic Association StudiesPoint MutationBase SequenceRisk FactorsAsian Continental Ancestry GroupGenetic TestingLinkage DisequilibriumEuropean Continental Ancestry GroupMolecular Sequence DataGenetic MarkersExonsMutation, MissenseGenes, DominantDNA Mutational AnalysisHyperlipoproteinemia Type IIIAtaxia TelangiectasiaAmino Acid SubstitutionHistocompatibility Antigens Class IChromosome MappingGenetic LinkageFerritinsGaucher DiseaseApolipoproteins EModels, GeneticXanthomatosisHemoglobin EHair ColorMembrane ProteinsEthylnitrosoureaThalassemiaOxidoreductases Acting on CH-NH Group DonorsJewsalpha 1-Antitrypsin DeficiencyHemoglobins, AbnormalDNAApolipoproteins APromoter Regions, GeneticGenetics, PopulationCohort StudiesDNA PrimersValineOdds RatioSerotonin Plasma Membrane Transport ProteinsReference ValuesTransferrinEye ColorPeptidyl-Dipeptidase AApolipoprotein E4Apolipoprotein C-IIIGenesPolycythemiaCodonHypolipoproteinemiasalpha-ThalassemiaCholesterolEmbryo LossIronCzech RepublicGene DeletionDrosophila melanogasterMice, Neurologic MutantsAge of OnsetRiskGilbert DiseaseAryl Hydrocarbon HydroxylasesGenotyping TechniquesCystic FibrosisApolipoproteins BHomocysteineInbreedingChinaPenetranceApolipoprotein A-I