What would have happened when two strains of E. coli, with or without plasmid are cultured in nutrient media with the antibiotic tetracycline?

The strain without the plasmid was able to reach maximum population potential.

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Both strains reached maximum population potential.

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The strain with the plasmid was able to reach maximum population potential.

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Neither strain was able to reach maximum population potential.

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Tetracycline did not affect either bacterial colony.

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Solution

The correct option is C The strain with the plasmid was able to reach maximum population potential.
The strain with the plasmid had the ability to resist the tetracycline in the media and thus was able to produce greater population rather the one without the plasmid was killed and the population density was less.
So the correct answer is "The strain with the plasmid was able to reach the maximum potential".

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