試題詳解

41. If the pBR322 plasmid were treated with PstI in order to insert a gene into the plasmid, which of the following would be correct regarding cells that were transformed with the resulting vector?
  
(A) cells that contained the desired vector would be resistant to ampicillin but sensitive to tetracycline.
(B) cells that contained the desired vector would be resistant to tetracycline but sensitive to ampicillin.
(C) cells that contained the desired vector would be resistant to both ampicillin and tetracycline.
(D) cells that contained the desired vector would be sensitive to both ampicillin and tetracycline.
(E) none of the above.