Q. No.Which of the following lepidoptera is killed by proteins produced by a particular strain of Bacillus thuringienesis?
(1) Mosquitoes
(2) Flies
(3) Beetles
(4) Tobacco budworm
(1) Mosquitoes
(2) Flies
(3) Beetles
(4) Tobacco budworm
B. thuringienesis produces protein…..during …..their life cycle.
1. Solution, specific phase of
2. Crystal, specific phase of
3. Crystal, all through
4. Solution, all through
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 second in the action of Bt toxin?
(1) Binding to epithelial cells
(2) Creating pores
(3) Swelling
(4) Lysis
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
Silencing of specific mRNA due to a complementary dsRNA is called mRNA silencing. Here the source of ds RNA is
(1) RNA virus
(2) Mobile genetic element with RNA intermediate
(3) Transposons having RNA intermediate during process of replication
(4) All of these
Agrobacterium vectors carried nematode specific genes which is introduced into the host plant and such that it produced
(1) Sense and anti sense RNA
(2) Only antisense RNA
(3) Only sense RNA
(4) Sense and antisense Protein
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