MCAT Question of the Day
    •

    Q:

    		 Rb is a tumor suppressor gene which helps to prevent the transformation of a normal cell into a cancer cell. Rb acts by preventing the replication of damaged DNA, thereby preventing the proliferation of cancerous cells. At which checkpoint in the cell cycle would Rb act?
    		 

    A

    		 G1/S

    B

    		 S/G2

    C

    		 G2/M

    D

    		 M/G1



    Mitosis and Meiosis |
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