MCAT Question of the Day
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    Q:

    		 Which of the following best describes how tRNA differs from mRNA?

    		 

    A

    		 Transfer RNA uses adenine, guanine, uracil, and cytosine while messenger RNA uses adenine, guanine, thymine, and cytosine.

    B

    		 Transfer RNA uses adenine, guanine, thymine, and cytosine while messenger RNA uses adenine, guanine, uracil, and cytosine.

    C

    		 Transfer RNA has a complex loop structure while messenger RNA is usually a simple, linear strand.

    D

    		 In transfer RNA, anticodons are complementary to messenger RNA codons, while in messenger RNA, codons are anti-complementary to DNA triplets.



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