Question

A plasmid vector should have

• A. origin of replication.
• B. selectable marker.
• C. cloning site.
• D. high copy number.

Answer 1

Answer: (A), (B), (C), (D)

high copy number.

A good plasmid vector should have :

• origin of replication where the replication starts
• selectable marker which contained the antibiotic resistance genes
• cloning site where restriction sites are present
• high copy number and low molecular weight.