The drug blocks the action of enzyme proteins that regulate reactions involving DNA, which reduces the growth and division of bacterial cells

The drug blocks the action of enzyme proteins that regulate reactions involving DNA, which reduces the growth and division of bacterial cells, leading to death. What processes in the bacterial cell does this drug affect? Why does growth, division stop and death of bacterial cells?

1) the drug affects the process of DNA replication, as a result, the division of the bacterial cell stops
2) the drug affects the transcription process, as a result, the synthesis of proteins stops, and therefore, the growth of cells stops and their death is observed

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