Which of the Following Is True, Concerning the Plasmid Vector

Multiple Choice

Which of the following is true, concerning the plasmid vector, pBR322?

A) It contains an origin of replication ori) .
B) It contains genes which confer resistance to the antibiotics ampicillin and tetracycline.
C) It contains a number of restriction sites that are useful for constructing RNA.
D) All of the above
E) Only A and B