Published by:
CGP EDU Academic Team
Published on: August 21, 2026
As most Bt toxins are insect group specific, so the choice of Bt genes depends upon –
Text Solution
Verified by ExpertsThe correct answer is:
D
Bt toxins are insect-group specific. Different Bt (Cry) genes produce toxins effective against different insect pests. Therefore, the choice of Bt gene depends on:
(i) The crop in which the gene is to be introduced.
(ii) The targeted pest that attacks that crop.
For example:
Cry1Ac → Cotton bollworm (Lepidopteran)
Cry3A → Beetles (Coleopteran)
Hence, both the crop and the targeted pest determine the choice of Bt gene.
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