Twin studies are one of preferred methods in behavior genetics. How does studying monozygotic and dizygotic twins help one understand the genetic basis for a trait or behavior? (Be sure to explain the what is special about the twins and how we use it in twin studies on nature/nurtue)

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.