Q. Cry II Ab and cry I Ab produce toxins that control
A) Cotton bollworms and corn borer respectively
B) Corn borer and cotton bollworms respectively
C) Tobacco budworms and nematodes respectively
D) Nematodes and tobacco budworms respectively
Explanation
Bt toxin is coded by a gene named Cry. There are a number of them, e.g., the proteins encoded by the genes Cry I Ac and Cry II Ab control the cotton bollworms, that of Cry I Ab controls corn borer.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.