MCAT Question of the Day
    •

    Q:

    		 Which of the following contains peptidoglycan?

    I. Gram negative bacteria
    II. Gram positive bacteria
    III. shells of arthropods
    		 

    A

    		 I only

    B

    		 II only

    C

    		 I and II

    D

    		 I, II, and III



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