Bt Cotton and Pest Resistant Plants — Prelims Questions

Which of the following statements about Bt toxin is INCORRECT?

The *cryIAc* and *cryIIAb* genes, commonly used in Bt cotton, are effective against which group of insect pests?

Which of the following is NOT a benefit of using Bt cotton?

The root-knot nematode *Meloidogyne incognita* is controlled in plants using which biotechnological approach?

The process of genetic engineering to create Bt cotton typically involves using which bacterium as a vector for gene transfer?

What is the primary reason why Bt toxin is harmless to humans?