48. Which of the followings is not a function of DNA polymerase I from E. col? (A) Adding nucleotides to the primer strand (C) 5'→3' exonuclcase activity (D) proofreading (B) 3'→5' exonuclease activity (E) E. coli DNA polymerase I has all of the above functions.

44. What are the three mammalian enzymes that can "fix" ammonia into organic molecules? (A) Nitrogenase complex, CarbamoyI phosphate synthetase 1, and Glutamine synthetase (B) Glutamate dehydrogenase, Glutamine synthetase, and Carbamoyl phosphate synthetase I (C) Dinitrogenase, CarbamoyI phosphate synthetase I, and Gjutamate dehydrogenase (D) Dinitrogenase reductase, Dinitrogenase, and Carbamoy! phosphate synthetase 1 (E) Glutamine anidotransferases, Glutamine synthetase, and CarbamoyI phosphate synthetase 1

48. Which of the followings is not a function of DNA polymerase I from E. col? (A) Adding nucleotides to the primer strand (C) 5'→3' exonuclcase activity (D) proofreading (B) 3'→5' exonuclease activity (E) E. coli DNA polymerase I has all of the above functions.

其他試題

48. Which of the followings is not a function of DNA polymerase I from E. col?
(A) Adding nucleotides to the primer strand
(C) 5'→3' exonuclcase activity
(D) proofreading
(B) 3'→5' exonuclease activity
(E) E. coli DNA polymerase I has all of the above functions.