問題詳情
9. In E. coli, there is a mutation in a gene called dnaB that alters the helicase that normally acts at the origin. Which of thefollowing would you expect as a result of this mutation?
(A) Single-strand binding protein could not bind to the unwound parental strands.
(B) Replication fork will be formed.
(C) The DNA will supercoil.
(D) Replication will occur via RNA polymerase alone.
(E) Replication will require a DNA template from another source.
(A) Single-strand binding protein could not bind to the unwound parental strands.
(B) Replication fork will be formed.
(C) The DNA will supercoil.
(D) Replication will occur via RNA polymerase alone.
(E) Replication will require a DNA template from another source.
參考答案
答案：A
難度：適中0.5
統計：A(8),B(1),C(2),D(0),E(2)
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