You insert a fragment of sheep DNA into a plasmid containing an AmpR gene. You transform bacteria with the recombinant plasmid, and plate the cells on growth media containing the antibiotic ampicillin. Each colony on the plate arose from ________ that ________ to ampicillin.  

A. many bacteria; are sensitive
B. a single bacterium; is resistant
C. a single bacterium; is sensitive
D. many bacteria; are resistant


Answer: B

Biology & Microbiology

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