Question

When a dicot plant is infected by Agrobacterium tumefaciens, the T-DNA in Ti-plasmid induces the plant to produce?

• A. Growth hormones like auxins and cytokinins
• B. Growth inhibitors like absciscic acid
• C. Fatty acids
• D. Leghaemoglobin

Answer 1

The correct option is A Growth hormones like auxins and cytokinins

Agrobacterium tumefaciens is the causal agent of crown gall disease (the formation of tumours). It is a rod-shaped, Gram-negative soil bacterium. The plasmid of this bacterium is called Ti-plasmid, it shows T-DNA. This plasmid used to produce growth hormones like auxins and cytokinins.

So, the correct option is ‘Growth hormones like auxins and cytokinins’.