Question

Natural genetic engineers of plant is:

• A. Yeast
• B. Agrobacterium tumefaciens
• C. E.coli
• D. Mycoplasma

Answer 1

The correct option is B Agrobacterium tumefaciens

Agrobacterium tumefaciens naturally transfers some part of Ti-plasmid into host plant DNA without any human effort, so it is called natural genetic engineer of plant.

The tumour-inducing (Ti) plasmid of Agrobacterium tumefaciens has now been modified into a cloning vector that is no longer pathogenic to the plants but can still use the mechanisms to deliver genes (disarmed) and are now used to deliver desirable genes.