Natural genetic engineer is

Options

(a) Pseudomonas putida
(b) Agrobacterium tumefaciens
(c) Escherichia coli
(d) Bacillus sublilis

Correct Answer:

Agrobacterium tumefaciens

Explanation:

A. tumefaciens has the exceptional ability to transfer a particular DNA segment (T-DNA) of the tumor-inducing (Ti) plasmid into the nucleus of infected cells where it is then stably integrated into the host genome and transcribed, causing the crown gall disease