One of the reservoirs for Proteus vulgaris is the human intestinal tract. ...
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One of the reservoirs for is known to be resistant to tetracyclines; the following plasmid has been isolated from
Image failed to load: plasmid
The human intestinal tract is also a common reservoir for
Escherichia coli. Your research team studies different strains of E. coli isolated from human faecal samples. Most strains of E. coli are susceptible to tetracycline. You have just demonstrated that E. coli strain 3022 (previously known to be susceptible to tetracycline), now uses the exact same mechanism for tetracycline resistance as P. vulgaris.Using the information presented in this scenario, what is the most likely
mechanism to explain how
E. colistrain 3022 is now resistant to
tetracycline? Give a brief explanation of the mechanism to support your response.
[5 marks]
[max. 100 words]
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