MCAT Question of the Day
    •

    Q:

    		 Which of the following is true regarding stop codons?
    		 

    A

    		 Stop codons contain at least two of the same bases found in the start codon.

    B

    		 Stop codons can contain thymine in the messenger RNA.

    C

    		 The amino acid attached to a tRNA that recognizes a stop codon is nonpolar, and this contributes to the translation process ending.

    D

    		 The introduction of a premature stop codon can be due to both nonsense and missense mutations.



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