Have you ever wondered how babies develop vision, movement, and other major functions?  This happens because enzymes clear out fatty protein and insignificant materials that can interfere with growth.  There is a genetic disorder that may cause a baby to be born without one of these important enzymes.  This enzyme is called Hexosaminidase A (Hex A).  Without this enzyme, fatty proteins may build up in the brain and damage a baby’s sight, movement, and mental development. The Tay-sachs Disorder is rather common in ethnic groups such as the Ashkenazi Jews.  Each year, about 16 cases of Tay-Sachs are diagnosed in the United States.  Occasionally the disease is also found in non-Jewish populations.