title: Genetic principles.
abstract: The author discusses the basic principles of genetics, including the classification of genetic disorders and a consideration of the rules and mechanisms of inheritance. The most common pitfalls in clinical genetic diagnosis are described, with emphasis on the problem of the negative or misleading family history.
mesh_terms: D000328:Adult; D002869:Chromosome Aberrations / Q000235:genetics; D002872:Chromosome Deletion; D025063:Chromosome Disorders; D005260:Female; D005799:Genes, Dominant; D005808:Genes, Recessive; D006801:Humans; D008297:Male; D008957:Models, Genetic; D009154:Mutation; D010375:Pedigree; D011247:Pregnancy; D012729:Sex Chromosome Aberrations / Q000235:genetics; D012871:Skin Diseases / Q000235:genetics*; D012878:Skin Neoplasms / Q000235:genetics