Use the Following Information to Answer the Question Which of the Following Dipeptides Will Form from This MRNA

Use the following information to answer the question.
A part of an mRNA molecule with the following sequence is being read by a ribosome: 5?-CCG-ACG-3? (mRNA) . The following charged transfer RNA molecules (with their anticodons shown in the 3? to 5? direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form.
$$\begin{array} { | c | c | } \hline \text { tRNA Anticodon } & \text { Amino Acid } \\\hline \text { GGC } & \text { Proline } \\\text { CGU } & \text { Alanine } \\\text { UGC } & \text { Threonine } \\\text { CCG } & \text { Glycine } \\\text { ACG } & \text { Cysteine } \\\text { CGG } & \text { Alanine } \\\hline\end{array}$$
Which of the following dipeptides will form from this mRNA?

A) cysteine-alanine
B) proline-threonine
C) glycine-cysteine
D) alanine-alanine

Correct Answer:

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