Statement I: The choice of genes not depends upon the crop and the targeted pest, as most Bt toxins are not insect-group specific.
Statement II: Proteins encoded by the genes crylAc and cry llAb control the corn borer, that of cyr lAb controls cotton bolloworms.
Text Solution
Verified by ExpertsD
Statement I: Incorrect
Bt toxins are insect-group specific, not non-specific.
So the choice of genes does depend on the targeted pest and crop.
Statement II: Incorrect (has wrong facts/typos)
Correct facts are:
cryIAc → cotton bollworm
cryIIAb → cotton bollworm (and related lepidopterans)
cryIAb → corn borer
But the statement wrongly says:
• corn borer controlled by cryIAc and cryIIAb (incorrect pairing)
• cotton bollworm by cryIAb (incorrect).
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