Question

Identify the cloning vector.

• A. Amp and Tet' loci
• B. Ori minus pBR 322
• C. DNA of Salmonella typhimurium
• D. Ti plasmid

Answer 1

Answer: (D)

Ti plasmid

A cloning vector is a small piece of DNA that can be stably maintained in an organism, and into which a foreign DNA fragment can be inserted for cloning purposes. The cloning vector may be DNA was taken from a virus, the cell of a higher organism, or it may be the plasmid of a bacterium.

So the correct answer is option D.