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Bacterial strategies to evade natural or human-imposed antibiotics are varied an

ID: 79499 • Letter: B

Question

Bacterial strategies to evade natural or human-imposed antibiotics are varied and include membrane-bound efflux pumps that export antibiotics from the cell. A review of efflux pumps (Grkovic, S., et al., 2002) states that, because energy is required to drive the activating them in the absence of the a selective disadvantage. The review also states that a given antibiotic may play a role in the regulation of efflux by with either an activator protein or a repressor protein, the has depending on system involved. Based on this information, how might such systems categorized terms regulation? negative inducible negative repressible positive inducible positive repressible

Explanation / Answer

positive inducible and negative inducible as

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