Also, there are many other factors besides genetics that can influence schizophrenia - not least the behaviour of the people in the sufferer's daily life.
It's such a complex issue that in general you cannot reasonably stand up and say "yes, this person's condition has been caused by [X] and [X] alone."
( The Mock TurtIe ™ --- Thinks you are a cunt, on, Sun 19 Sep 2010, 21:22, Reply)