Are all genetic disorders recessive?
No. Approximately 2,000 autosomal dominant disorders (ADDs) have been identified. These disorders have effects that range from inconvenience to death. ADDs include Huntington’s disorder, polydactyly (extra toes or fingers), Marfan’s syndrome (extra long limbs), achondroplasia (a type of dwarfism), some forms of glaucoma (a vision disorder), and hypercholesterolemia (high blood cholesterol).
