NEET Previous Year Question

In Bt cotton the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

  1. AAlkaline pH of the insect gut
  2. BAcidic pH of the insect gut
  3. CAction of gut microorganisms
  4. DPresence of conversion factors in insect gut

Correct answer: A

Solution

(a) Bt toxin is produced as an inactive protoxin. In the alkaline gut of insects, it gets converted into the active toxin, which kills the insect.

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