NEET Biology question

Which of the following correctly describes the main reason Bt cotton is considered an effective pest-management strategy?

(A)It eliminates the need for any irrigation
(B)It expresses a bacterial toxin gene (cry) that is lethal to bollworm larvae, reducing the need for chemical insecticide spraysCorrect
(C)It increases the cotton fibre's natural colour
(D)It prevents all fungal diseases of cotton automatically

Answer: (B)

Solution

Bt cotton expresses the cry gene from Bacillus thuringiensis, producing a toxin lethal to bollworm

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Question ID VK-124402