If transformation efficiency is calculated as CFU per μg of DNA, what is the unit?

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Multiple Choice

If transformation efficiency is calculated as CFU per μg of DNA, what is the unit?

Explanation:
Transformation efficiency is a rate: it tells you how many colonies (CFU) are produced for each microgram (μg) of DNA used. Since you’re dividing the number of transformants by the amount of DNA, the resulting unit is CFU per μg of DNA, written as CFU/μg. For example, 1000 CFU obtained with 0.01 μg of DNA equals 1000 / 0.01 = 100,000 CFU/μg. The other options don’t reflect a ratio of colonies to DNA mass.

Transformation efficiency is a rate: it tells you how many colonies (CFU) are produced for each microgram (μg) of DNA used. Since you’re dividing the number of transformants by the amount of DNA, the resulting unit is CFU per μg of DNA, written as CFU/μg. For example, 1000 CFU obtained with 0.01 μg of DNA equals 1000 / 0.01 = 100,000 CFU/μg. The other options don’t reflect a ratio of colonies to DNA mass.

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