The Existence of MZ Twin Pairs in Which Only One

question 14

Multiple Choice

The existence of MZ twin pairs in which only one has autism suggests that

• A)some MZ twins are really dizygotic.
• B)the environment contributes to autism.
• C)twins cannot become autistiC.
• D)genes do not contribute to causing autism.

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Definitions:

Central Focus

The primary or most important point of attention or activity.