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
(d) Bt is causing death due to asphagsiation of insect

1 Answer

Answer :

(c) Bt is stomach poison; it changes the permeability of stomach
due to generation of pores in alkaline environment of stomach

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