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

question 28

Multiple Choice

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

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Definitions:

Cristae

The internal folds of the mitochondrion's inner membrane, where aerobic respiration processes occur, enabling energy production.

Ampulla

A dilation or expansion in a duct or tube, notably the ampulla of Vater in the digestive system, where the bile and pancreatic ducts enter the small intestine.

Maculae

Small, specialized areas in the center of the retina that provide detailed central vision and are critical for tasks requiring focus, such as reading or driving.

Mastoid Process

A bony prominence located behind the ear, part of the temporal bone, and serving as an attachment point for neck muscles.