A board-certified doctor has passed exams in a certain specialty, so it's evidence of skill. The American Board of Medical Specialties recognizes 24 areas of medical specialty, including anesthesiology, cardiology, internal medicine, and pediatrics.
But the mutations we hear about most often are the ones that cause disease. Some well-known inherited genetic disorders include cystic fibrosis, sickle cell anemia, Tay-Sachs disease, phenylketonuria and color-blindness, among many others. All of these disorders are caused by the mutation of a single gene.
A R T I C L E. For about 100 years it has been popular to explain the degenerative diseases as the result of mutations in the genes, a slow accumulation of somatic mutations, as opposed to the germ cell mutations that are involved in Huntington s chorea and sickle cell anemia.