MCAT Question of the Day
    •

    Q:

    		 A particular endocrine cell type in the body secretes a substance with the formula X-R. X is the core molecule, and R is a glycan group. A certain subset of these cells are studied and it is found that the substance these cells produce is X, rather than X-R. This deficit likely relates to the:
    		 

    A

    		 Nucleus.

    B

    		 Golgi apparatus.

    C

    		 Smooth ER.

    D

    		 Mitochondria.



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