The introduction of t-DNA into plants involves

Options

A. Allowing the plant roots to stand in water
B. infection of the plant by Agrobacterium
C. Altering the pH of the soil, then heat-shocking the plants
D. Exposing the plants to cold for a brief

Answer

B

Explanation

Agrobacterium tumefaciens bacteria contain t-DNA (transfer DNA) ltbr. In its Ti plasmid (Tumor inducing plasmid) This bacterium transfers this t-DNA fragment into host plant nuclear genome during infection.