MCAT Question of the Day
    •

    Q:

    		 Twin studies allow psychology researchers to evaluate:
    I. effects of environment independent of genetic factors.
    II. effects of genetic factors independent of environment.
    III.social behaviors between individuals with similar upbringings.
    		 

    A

    		 I only

    B

    		 I and II

    C

    		 II only

    D

    		 I, II, and III



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