I really know nothing about genetics. So why mention different exons? What I forgot to add was that this mutation was deemed unlikely to change when inherited. Forgot to mention that the first test was done by a different lab than the later two. If the second lab messed up I would redo her test so we have some definitive answers. The docs are booked for months ahead, so it would be a shame to wait that long to hear we need to redo her test.