The Bt toxin gets activated in

(1) Gut of ruminents

(2) Gut of insects

(3) Cytoplasm of Bacillus

(4) Plant cells

Subtopic:  Bt Crops |
 94%
From NCERT
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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

Subtopic:  Bt Crops |
 92%
From NCERT
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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

Subtopic:  Bt Crops |
 89%
From NCERT
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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

Subtopic:  Bt Crops |
 78%
From NCERT
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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

Subtopic:  Bt Crops |
 67%
From NCERT
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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

Subtopic:  Bt Crops |
 60%
From NCERT
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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

Subtopic:  Bt Crops |
 83%
From NCERT
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Most of the Bt toxin genes are

(1) Insect group specific

(2) Pest specific

(3) Weed specific

(4) Bacteria specific

Subtopic:  Bt Crops |
 82%
From NCERT
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The Bt toxin is not coded by

(1) CrylAc

(2) CryllAb

(3) CrylAb

(4) CrylIIAc

Subtopic:  Bt Crops |
 92%
From NCERT
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Cotton bollworms are controlled by

(1) CryIAc

(2) Cry II Ab

(3) Both A and B

(4) Cry I Ab

Subtopic:  Bt Crops |
 87%
From NCERT
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