Question

You measure the OD600 of your culture of chloramphenicol-treated XL1-Blue/pTrc99A cells as described in Step 1 of Experiment 3A and obtain a value of 0.376. Assuming a plasmid copy number of 630 plasmids per cell, and a 100% recovery of plasmid DNA from 3.00 mL of the cells, what is the theoretical yield of plasmid DNA in micrograms (ug)? 2 points (Note: the size of pTrc99A is 4176 base pairs and the average molecular weight of double-stranded DNA is 660 g/mole of base pairs; report your answer with three significant figures)

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