A) Long fibre and resistance to aphids
B) Medium yield, long fibre and resistance to battle pests
C) High yield and production of toxic protein crystals which kill dipteran pests
D) High yield and resistance to bollworms
Correct Answer: D
Solution :
[d] High yield and resistance to bolloworms Bacillus thuringiensis forms crystals containing a toxic insecticidal protein Bt toxin protein exists as inactive protein but once and insect ingests the inactive toxin, it is converted into an active form of toxin due to alkaline pH of the gut, which solubalise the crystals.
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