Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (Bt) is resistant to
A
Insect predators
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B
Fungal diseases
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C
Plant nematodes
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D
Insect pests
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Solution
The correct option is D Insect pests B. thuringiensis forms protein crystals during a particular phase of their growth. These crystals contain a toxic insecticidal protein. Bt cotton is an insect-resistant transgenic crop designed to combat the bollworm.