NEET 2010 Biology question

Some of the characteristics of Bt cotton are

(1)Medium yield, long fibre and resistance to beetle pests
(2)High yield and production of toxic protein crystals which kill dipteran pests
(3)High yield and resistance to bollwormsCorrect
(4)Long fibre and resistance to aphids

Answer: (3)

Solution

Bt cotton carries the cryIAc and cryIIAb genes from Bacillus thuringiensis, producing Cry proteins (delta-endotoxin) that are toxic to the cotton bollworm (lepidopteran) larvae. Bt cotton thus gives a high yield

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Question ID VK-090588