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A student attempts to transform a population of E. coli with a pBluescript plasmid. How do you advise him to identify cells that have the plasmid? Answer Plate the cells on a medium containing X-gal. Cells with plasmids will turn blue. Plate the cells on a medium with ampicillin. Cells […]

Write a summary of the article Results and Analysis of a Survey on Plastic Surgery Would you consider plastic surgery? Do you belive social media advertisements for plastic surgery influence people? What gender most likely to undergo plastic surgery? What is the most popular age when people do plastics surgery? What […]

Trypsin is a serine protease with an identical mechanism to chymotrypsin, but cuts after positively-charged amino acids. Which of the following statements would you expect to be false? a. Serine 195 will be conserved. b. The oxyanion hole will be present. c. The active site will include an Asp or […]

Movement of chloride ions across the cell membrane from the the outside of nerve cells to the inside has a delta-G of about 1.1 kcal/mol even in the presence of a gradient. Why is the gradient alone not enough to get the ions into the cell? (Think about how delta-G […]