A Part of an MRNA Molecule with the Following Sequence

question 21

Multiple Choice

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.
Table 17.1
$\begin{array} { | l | l | } \hline \text { tRNA Anticodon } & \text { Anind Acid } \\\hline \text { FRE } & \text { Prolire } \\\text { CEW } & \text { Alanire } \\\text { WEE } & \text { Thronire } \\\text { EEE } & \text { Glycire } \\\text { AEE } & \text { Cyateine } \\\text { EEE } & \text { Alanire } \\\hline\end{array}$
What is the anticodon loop of the first tRNA that will complement this mRNA?

• A) 3' UGC 5'
• B) 3' GGC 5'
• C) 5' GGC 3'
• D) 5' UGC 3'
• E) 5' ACG 3'

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