Parents that know they are carriers and are pregnant can get tested to see if their baby will be affected with Tay Sach's disease. Some parents that find out that their baby will have this disease are actually willing to have an abortion.
Another way this disease could be prevented is that they take an egg out to see if it's carrying the disease. If not then they can have a healthy baby.
Another way this disease could be prevented is that they take an egg out to see if it's carrying the disease. If not then they can have a healthy baby.