問題詳情

37. Which of the following describes the correct sequence of enzyme activity upon thelagging strand?
(A)primase, DNA ligase, DNA polymerase I, DNA polymerase IIl
(B) primase, DNA polymerase I, DNA polymerase III, DNA ligase
(C) primase, DNA polymerase III, DNA polymerase I, DNA ligase(
(D)primase, DNA ligase, DNA polymerasc IIl, DNA polymerase I
(E)DNA polymerase IIl, primase, DNA polymerase I, DNA ligase

參考答案

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難度:計算中-1
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vdacjn】評論

答案是(C) primase, DNA polymerase III, DNA polymerase I, DNA ligase1. primase先形成RNA primer 2. DNA pol III 合成新股DNA( 方向5'-3')3. DNA pol I 移除 RNA primer 4. DNA ligase 連結延遲股的岡崎片段內容可見Campbell Biology, 12th EditionChap.16 The Molecular Basis of Inheritance p.325