Question

Bt toxin kills insects by

Answer 1

Answer:

Explanation: BT toxin is inactive protoxins when any insect ingest the the inactive toxin, it is converted into an active form due to the alkaline pH of gut which solubilize the Crystal and activated toxin bind to the surface of modgut epithilial cell and create pores on body that cause cell swelling and eventually cause death of the insect .

Answer 2

Answer:

Bacillus thuringiensis toxins kill insects by forming pores into cell membranes of the insect midgut (Bravo et al., 2007). Insecticidal toxins are divided into the two multigenic families Cry and Cyt.