Autosomal Recessive Disorders
Tay-Sachs -- fatal -- storage disease -- lipids build up in brain -- mental retardation -- increased incidence in eastern European Jewish people
Cystic Fibrosis -- increased mucus build-up in lungs -- untreated children die young -- 1 in 25 Caucasians are carriers
Sickle Cell Anemia -- hemoglobin is less able to carry O2 -- sickles when O2 content of blood is low -- 1 in 10 African Americans are carriers
Phenylketonuria -- inability to digest phenylalanine -- causes mental retardation if not avoided in diet








