Question

Which is used as a cloning vector into plants?

• A. Retroviruses
• B. Both A and B
• C. Micro-injection
• D. Ti plasmid

Answer 1

The correct option is D Ti plasmid

Ti plasmid

The Ti plasmid or tumour inducing plasmid (extrachromosomal DNA) is carried by Agrobacterium tumefaciens. The T-DNA segment of the Ti plasmid integrates itself into the plant cell’s genome to induce tumour formation in plants. This property of the plasmid makes it an effective vector for transferring foreign genes into plant cells.

Final answer

(c) Ti plasmid