(B) The correct answer is $B$. "Crown gall" is a plant disease characterized by the formation of tumors or galls. It is caused by the soil-borne bacte

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(B) The correct answer is $B$. "Crown gall" is a plant disease characterized by the formation of tumors or galls. It is caused by the soil-borne bacterium $Agrobacterium \ tumefaciens$. This bacterium transfers a segment of its $DNA$, known as $T-DNA$, into the plant cell, which leads to uncontrolled cell division and gall formation.