Question

a scientist injects a drug called rifampicin, which inhibits rna synthesis, into a bacterium. what is the most likely direct result of this injection?○ the bacterial dna will stop replicating.○ the bacterial dna will replicate in an uncontrolled way.○ the process of amino acid synthesis will stop in the bacterium.○ the process of protein synthesis will stop in the bacterium.

Explanation:

Rifampicin inhibits RNA synthesis (transcription). Since messenger RNA (mRNA) is required as a template for protein synthesis (translation), blocking RNA synthesis directly prevents the production of mRNA, which then stops protein synthesis. DNA replication is a separate process not targeted by this drug, and amino acid synthesis does not depend on RNA synthesis in this direct manner.

Answer:

The process of protein synthesis will stop in the bacterium.