Quinolones like ciprofloxacin inhibit DNA gyrase and topoisomerase IV and thus
a. interfere with unwinding of DNA during replication.
b. result in the ribosome misreading mRNAs.
c. lead to pore formation and depolarization of the cell membrane.
d. cause a shortage of peptidoglycan precursors that weakens the cell wall, leading to lysis.
Answer: A
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