Q. Which of the following genes were introduced in cotton to protect it from cotton bollworms?
A) Cry Ac and cry Ab
B) Bt Ac and Bt Ab
C) Cry I Ac and cry II Ab
D) Nif genes
Explanation
Bt toxin is coded by a gene named cry. There are number of such genes, $e.g.,$ the proteins encoded by the genes cry IAc and cry IIAb control the cotton bollworms, that of cry IAb controls corn borer
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.