問題詳情
17. Which of the following sequences is not found in an E. coli vector (such as pET21)?
(A) replication origin (ori)
(B) multiple cloning sites (MCS)
(C) antibiotic resistance gene (AmpR)
(D) Shine-Dalgarno sequence
(E) CMV promoter
參考答案
答案：E
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)