Question:medium

The Bt toxin in genetically engineered Bt cotton kills the pest by:

Updated On: Jan 13, 2026
  • Creating pores in the midgut
  • Damaging the respiratory system
  • Degenerating the nervous system
  • Altering the pH of body fluids
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The Correct Option is A

Solution and Explanation

Bacillus thuringiensis's Bt toxin in genetically modified Bt cotton eradicates pests by forming pores in their midgut, thus destroying the gut lining and causing insect death.

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