Actinomycin D Inhibits the Growth of Bacteria by

question 68

Multiple Choice

Actinomycin D inhibits the growth of bacteria by

• A) specifically inhibiting the initiation of RNA synthesis.
• B) blocking the further elongation of polypeptide chain synthesis.
• C) intercalating its phenoxazone ring between two G-C base pairs.
• D) preventing the binding of aminoacyl-tRNA to the a-site of ribosomes.
• E) inhibiting the peptidyl transferase activity of ribosomes.

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