- A Agrobacterium tumefaciens
- B Bacillus thuringiensis
- C Escherichia coli
- D Rhizobium leguminosarum
Correct answer: B. Bacillus thuringiensis
Explanation: Bacillus thuringiensis produces the Cry proteins (Bt toxin); its cry genes are introduced into crops like Bt cotton.
Concept context
GM crops, transgenic animals, gene therapy, molecular diagnostics, and bioethics. Frequent 2–3 mark questions in NEET.