One member of an identical twin pair may have a greater risk than the other of suffering certain disorders such as schizophrenia. this may be partially explained

The possible reason of why one member of the identical twin pair could have greater risk in suffering disorders is because the twin could not have the same gene of his or her other twin. He or she could have more or less gene than the twin that has the normal amount of gene.

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.