If the gene for one parent or a child to have a chance to make the SS, as this disease is 50 percent, but if the father and mother as a child, this disease will cause this disease, so we paid 25 percent of employers plan.
If the gene in the mother or mother, one of the SS will make a potential disease is 50 percent if both parents to this disease. It makes 25 percent of children with this disease reclaimed plan.