MCAT Question of the Day
    •

    Q:

    		 Proteins distributed on a pH gradient and separated by their isoelectric point will be located at which position?
    		 

    A

    		 The point where the protein has denatured and is linear.

    B

    		 The point where the protein's size corresponds to the pore size of the gel matrix.

    C

    		 The point where the protein has been completely deprotonated.

    D

    		 The point where the protein's pKa is equal to the external pH.



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