Q378
Bt cotton is resistant to bollworm, it is due to
A.
Bt is repellent to bollworm
B.
Bt is contact poison for bollworm
C.
Bt is stomach poison; it changes the permeability of stomach due to generation of pores in alkaline environment of stomach
AnswerD.
Bt is causing death due to asphagsiation of insect
Answer: Option C
Solution
Answer: Option C
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