HORTICULTURE SCIENCE
GENERAL AGRICULTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cry
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iac
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lap
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noy
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Detailed explanation-1: -Bt toxins are insect-group specific. The toxin is coded by a gene named cry. There are a number of them, for example, the proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer.
Detailed explanation-2: -The protein encoded by the genes cryIAc and cryIIAb control the cotton bollworms. The corn borers are controlled by the toxin proteins coded by the gene cryIAb.
Detailed explanation-3: -The Cry1ac and Cry2ab genes are encoded by an organism known as Bacillus thuringiensis. These genes code for a toxin protein that causes lysis in the gut of the bollworms. The protein acts as a toxin when ingested by the pests. The protein becomes activated after reaching the gut of pests.