Q. No.
The Bt toxin gets activated in
(1) Gut of ruminents
(2) Gut of insects
(3) Cytoplasm of Bacillus
(4) Plant cells
The activated Bt toxin binds to
(1) Surface of midgut epithelial cells
(2) Surface of hindgut eithelial cells
(3) Surface of foregut epithelial cells
(4) Surface of gut endothelial cells
Which of the following event is first in the action of Bt toxin?
(1) Binding to epithelial cells
(2) Creating pores
(3) Swelling
(4) Lysis
Which of the following event is last in the action of Bt toxin?
(1) Binding to epithelial cells
(2) Swelling
(3) Lysis
(4) Creating pores
Which of the following event is second in the action of Bt toxin?
(1) Binding to epithelial cells
(2) Creating pores
(3) Swelling
(4) Lysis
Which of the following event will occur before death of insect as an action of Bt toxin?
(1) Lysis
(2) Swelling
(3) Pore formation
(4) Binding to epithelial cells
The choice of Bt toxin gene depends on
(1) Crop
(2) Targeted pest
(3) Both A and B
(4) Only on protein of Bt toxin gene
Most of the Bt toxin genes are
(1) Insect group specific
(2) Pest specific
(3) Weed specific
(4) Bacteria specific
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