To MOST Readily Demonstrate Transformation of Bacteria in the Laboratory

question 8

Multiple Choice

To MOST readily demonstrate transformation of bacteria in the laboratory one could extract DNA from:

• A) an auxotroph and add it to prototrophic cells.
• B) arg^- cells and add it to arg⁺ cells.
• C) strep^s (sensitive) and add it to strep^r (resistant) cells.
• D) arg⁺ cells and add it to arg^- cells.
• E) both arg^- and arg⁺ cells, mix them, and select for recombinants.

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