MCAT Question of the Day
    •

    Q:

    		 mRNA molecules have a very short half-life as a result of cytosolic nucleases. To counteract the degradation of native mRNA molecules without affecting the degradation of mRNA molecules from intracellular pathogens, eukaryotic cells will do which of the

    		 

    A

    		 Post-transcriptionally modify native mRNA molecule with a 5' cap

    B

    		 Remove the first several codons which are typically degraded first by exonucleases

    C

    		 Suppress nuclease activity during periods of high transcription

    D

    		 Translate mRNAs in the nucleus to protect against cytosolic nucleases



    Control of Gene Expression in Eukaryotes |
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