MCAT Question of the Day
    •

    Q:

    		 Erythropoiesis involves the differentiation of a nucleated progenitor cell into a non-nucleated erythrocyte. Prior to the loss of its nucleus, the progenitor cell has a high concentration of ribosomes. This is most likely due to which of the following?
    		 

    A

    		 production of nucleus-degrading proteases and nucleases

    B

    		 production of hemoglobin

    C

    		 maintenance of the enlarged nucleus

    D

    		 secretion of paracrine differentiation proteins



    Eukaryotic Cells | Circulatory System |
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