MCAT Question of the Day
    •

    Q:

    		 A group of researchers would like to separate DNA fragments based on their respective sizes. These researchers should employ a(n):
    		 

    A

    		 distillation.

    B

    		 ion-exchange chromatography.

    C

    		 western blot.

    D

    		 southern blot.



    Experimental Methods |
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