5Which activity of DNA polymerase I is also called "proofreading" activity?
(A) 5' to 3' polymerase activity
(B) 3' to 5' polymerase activity
(C) 5' to 3' exonuclease activity
(D) 3' to 5' exonuclease activity

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統計： A(0), B(1), C(0), D(0), E(0) #3803763