An MRNA Molecule with the Sequence 5′-CCG-ACG-3′is Being Translated at a Ribosome

Multiple Choice

An mRNA molecule with the sequence 5′-CCG-ACG-3′is being translated at a ribosome. 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.
Which of the following dipeptides will form from this mRNA?
A) cysteine-alanine
B) proline-threonine
C) glycine-cysteine
D) alanine-alanine
Answer: B
Topic: Translation is the RNA-directed synthesis of a polypeptide: A Closer Look
Bloom's Taxonomy: Levels 3-4: Applying/Analyzing
Learning Outcome: 17.4, Global LO: G2, V&C LO: VC-I
-An mRNA molecule with the sequence 5′-CCG-ACG-3′is being read by a ribosome.
During translation which of the following tRNA anticodons will be the first to productively bind with this mRNA?

A) 3′-GGC-5′
B) 5′-GGC-3′
C) 5′-UGC-3′
D) 3′-UGC-5′