試題詳解

83. Many proteins are involved in DNA replication of E. coli. Which of the following pairs of protein and function are correct? ①DNA gyrase, unwinding DNA ②DnaA, helicase ③DNA polymerase I, excises RNA primer and fills in with DNA④DNA polymerase II holoenzyme, 5' → 3' exonuclease⑤DNA polymerase III holoenzyme, elongation (DNA synthesis)
(A)②③⑤
(B)②③④
(C)①③④
(D)①③⑤
(E)①①⑤