Question

In Bt cotton, a transgenic plant, Bt is used for the purpose of conferring:

• A. High lysine (essential amino acid) content
• B. Insect resistance
• C. High protein content
• D. High vitamin-A content

Answer 1

The correct option is B Insect resistance

Bt cotton is a transgenic plant with insect resistance. These plants contain Bt gene encoding Bt toxin derived from Bacillus thuringiensis. The bt toxin is present in the inactive form and gets transformed into active form when exposed to the alkaline environment of the insect gut.