you have transformed E.coli cells with a plasmid containing the gene for the enzyme beta-lactamase you have used 3µl of a stock solution of 2.5ng/µl DNA. You transformed 150/µl of competent cells, using the calcium chloride method. you have added 600µl of luria broth to the cells and then plated out 200µl on triplicate plates. upon counting the colonies, you got the following results: plate 1: 120 cfu plate 2: 35 cfu plate 3: 95 cfu please answer the following question: 1. what new characteristic will the cells have ater transformation? 2. how are you going to test for the new characteristic? 3. calculate the transformation efficiency of the experiment?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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you have transformed E.coli cells with a plasmid containing the gene for the enzyme beta-lactamase you have used 3µl of a stock solution of 2.5ng/µl DNA. You transformed 150/µl of competent cells, using the calcium chloride method. you have added 600µl of luria broth to the cells and then plated out 200µl on triplicate plates. upon counting the colonies, you got the following results:

plate 1: 120 cfu

plate 2: 35 cfu

plate 3: 95 cfu

please answer the following question:

1. what new characteristic will the cells have ater transformation?

2. how are you going to test for the new characteristic?

3. calculate the transformation efficiency of the experiment?

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