First slide

Tools of Recombinant DNA Technology

Question

The introduction of tDNA into plants involves

Easy

A

infection of the plant by Agrobacterium tumefaciens
B

altering the pH of the soil, then heat-shocking the plants
C

exposing the plants to cold for a brief period
D

allowing the plant roots to stand in water

Solution

Agrobacterium tumifaciens, a pathogen of several dicot plants is able to deliver a piece of DNA known as ‘T-DNA’ to transform normal plant cells into a tumor and direct these tumor cells to produce the chemicals required by the pathogen.

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