A Pharmaceutical Researcher Develops a New Drug That Affects Bacterial

A pharmaceutical researcher develops a new drug that affects bacterial protein synthesis.  In an experiment, Escherichia coli is exposed to the drug and serially cultured in media containing tagged nucleotides and amino acids.  It is found that the drug inhibits molecules that recognize the highlighted codon in the bacterial mRNA fragment shown in the image below. Which of the following molecules is the most likely target of this drug?

A) Charged tRNA
B) Elongation factor 2
C) Releasing factor 1
D) snRNP
E) Transcription factor II D
F) Uncharged tRNA

Correct Answer:

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