Question

In Bt cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to

(a) action of gut microorganisms

(b) presence of conversion factors in insect gut

(c) alkaline pH of the insect gut

(d) acidic pH of the insect gut.

Answer 1

Ans: (c) Alkaline ph of the insect gut.

Explanation: Inactive toxin (protoxin) activate in the presence of alkaline ph.