Some common antibiotics are listed. The action of each antibiotic is described.
1 rifampicin – inhibits RNA polymerase
2) streptomycin – inhibits 70S ribosomes
3) neomycin – inhibits DNA synthesis
4) ampicillin – inhibits peptidoglycan synthesis
Which of these antibiotics will affect the activities of bacterial cells only?
1 )
1, 2, 3 and 4
2 )
1, 2 and 3 only
3 )
2 and 4 only
4 only
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