NEET 2026 Botany Bt Cotton MCQ Question

Specific Bt toxin genes were isolated from Bacillus thuringiensis and incorporated into several crop plants such as cotton. The choice of genes depends upon the crop and the targeted pest, as most Bt toxins are insect-group specific. The toxin is coded by a gene named cry. The proteins encoded by the genes cryIAc and cryIIAb control the cotton bollworms, that of cryIAb controls corn borer. So, the correct answer is cryIAc for cotton bollworms and cryIAb for corn borer that is represented in option (1).