Q. The tumour inducing capacity of Agrobacterium tumefaciens is located in large extra chromosomal plasmids called

A) $R_{i} - plasmid$
B) Lambda phage
C) pBR 322
D) $T_{i} - plasmid$
Explanation

$T_{i} - plasmid$ is found in Agrobacterium tumefaciens, which produces crown gall (tumour) in a large number of dicot species. A tumefaciens is a Gram negative soil bacterium that infects a wide range of plants and cause crown galls.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.