A-LevelBiologyNucleic acids and protein synthesis9700/12 · Oct/Nov 2019 · Q371 Mark
Different antibiotics function in different ways. It is important that the antibiotic kills the bacteria, but does not harm the infected human. The antibiotic tetracycline has been found to affect the way in which human mitochondria function. Which statements could explain why human mitochondria function is affected by tetracycline?
AThe antibiotic prevents the synthesis of peptidoglycan cell walls.
BThe antibiotic prevents synthesis of linear DNA.
CThe antibiotic prevents translation of circular DNA.
DThe antibiotic prevents translation by binding to 70S ribosomes.
✓ Correct answer
D: The antibiotic prevents translation by binding to 70S ribosomes.
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