A-LevelBiologyInfectious diseases9700/12 · Oct/Nov 2018 · Q371 Mark
The antibiotic tetracycline binds to the small subunit of bacterial ribosomes, stopping protein synthesis. Bacteria have become resistant to tetracycline due to the effect of mutations. Which effect could produce resistance to tetracycline?
Apreventing tetracycline from binding to the bacterial cell wall
Bpreventing tetracycline from entering the bacterial cell
Cpreventing tetracycline from inhibiting transcription
Dpreventing the production of tetracycline by ribosomes
✓ Correct answer
B: preventing tetracycline from entering the bacterial cell
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