What is the source of the Ti plasmid which is modified and used as a cloning vector to deliver the desirable genes into plant cells ?
Answer & explanation
Correct answer: option 2
The tumor inducing (Ti) plasmid of Agrobacterium
tumefaciens has now been modified into a cloning vector which is no
more pathogenic to the plants but is still able to use the mechanisms
to deliver genes of our interest into a variety of plants .