Tay Sachs
Tay-sachs disease is an inherited disease of the nervous system. ... About one out of every thirty American Jews carry the tay-sachs gene. Infants affected by tay-sachs seem to be healthy at birth and grow normally for the first couple months of life. ... Since tay-sachs is a disease that is inherited, it is hard to determine whether or not the child will eventually develop the disease. Prenatal testing, called amniocentesis, can diagnose tay-sachs before the baby is born. ... If hex A is not present, the baby will eventually develop the tay-sachs disease.