Translation and Regulation
What is the direct cause of cell death by diphtheria toxin?

None of these
Induction of apoptosis
Formation of an ion channel in the cell membrane
Inactivation of a translational elongation factor

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Translation and Regulation
A quorum sensing system

detects a signal from the external environment
consists of a sensor component that phosphorylates a regulatory protein
senses a compound produced by the bacterium itself
controls the activity of ribosomes directly

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