A cow transgene is to be expressed in a bacterial cell.What else needs to be included in the expression vector?
A) A cow promoter
B) A bacterial promoter
C) A poly A-addition sequence
D) A cow promoter and a poly A-addition sequence
E) A bacterial promoter and a poly A-addition sequence

Question

Quizplus · Accepted Answer

Since the transgene is to be expressed in a bacterial cell, a bacterial promoter would be required to facilitate expression of the transgene. Poly A-addition sequences are not required in bacterial cells. Cow promoters are not necessary as the bacterial cell does not recognize or utilize them.

A Cow Transgene Is to Be Expressed in a Bacterial