MCAT Question of the Day
    •

    Q:

    		 You run three different proteins on an SDS-PAGE gel under reducing conditions. What must be true, given the results of the gel.
    		 

    A

    		 The protein in lane A has two subunits

    B

    		 The total size of the protein in lane B is larger than the protein in lane A

    C

    		 The protein in lane B is more negatively charged than the protein in lane C

    D

    		 The protein in lane C is either a monomer or a protein with subunits of the same size



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