70. Which of the following statements about E. coli DNA polymerase is correct?
① DNA polymerase I is involved in DNA repair.
② DNA polymerase III is involved in chromosomal replication.
③ DNA polymerase III shows 3 exonuclease activity.
④ DNA polymerase II shows 5 exonuclease activity.
⑤ The Vmax (nucleotides/second) of DNA polymerase III is higher than that of DNA polymerase I and DNA polymerase II.
(A) ①②③
(B) ①②④
(C) ①②⑤
(D) ②③④
(E) ②④⑤
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統計: A(4), B(2), C(3), D(0), E(1) #3429749
統計: A(4), B(2), C(3), D(0), E(1) #3429749