Original
GSD 3a is genetic. It is inherited through recessive genes from both parents. Both genes must be type 3a for the person to have the disease. Both parents must be carriers of the gene or have the disease. If both parents are carriers there is a 1 in 4 chance of the child having it. If one parent has the disease there is a 50℅ chance of the child having it and if both parents have the disease, the child will have it.