The cryIAb gene codes the protein for the specific insect group -
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Corn borer
Option (1) Cotton boll worm — Incorrect. Cotton bollworms are controlled by the proteins of cryIAc and cryIIAb, not cryIAb.
Option (2) Corn borer — Correct. The protein of cryIAb controls the corn borer, a pest that bores into maize plants.
Option (3) Drosophila — Incorrect. Drosophila is the fruit fly used in genetics experiments, as by Morgan. It is not a crop pest, and no Bt crop targets it.
Option (4) Mosquito — Incorrect. Mosquitoes are dipterans, and some Bt toxins do kill dipterans. But the cryIAb protein is the one for the corn borer, not for mosquitoes.
NCERT Extract:
Biotechnological Applications in Agriculture – …
