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NEETZoologyBiotechnology and Its Applications

The toxin protein coded by the gene cryIAb specifically controls which of the following pests?

Options

  1. ACotton bollworm
  2. BNematode ( Meloidogyne incognita )
  3. CArmyworm
  4. DCorn borer

Correct answer

D. Corn borer

Step-by-step solution

The proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms. The protein encoded by the gene cryIAb specifically controls the corn borer. Armyworm is a lepidopteran insect that can be targeted by Bt toxins in general, but cryIAb is specifically mentioned in NCERT for corn borer. Meloidogyne incognita is a nematode targeted by RNA interference, not by cry genes. Answer: Corn borer

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