MCAT Question of the Day
    •

    Q:

    		 What is added to the 3' end of many eukaryotic mRNAs after transcription?
    		 

    A

    		 Introns

    B

    		 Exons

    C

    		 Trinucleotide 5'-CCA

    D

    		 Poly A Tail



    Genetic Code, Transcription, Translation |
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