Question

Assertion (A): Bt cotton is resistant to a group of insects.

Reason (R): Bacillus thuringiensis produces an insecticidal protein called Bt toxin which is toxic to the larvae of certain insects.

Options

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

Explanation:

Bt cotton carries a Bt gene and produces an insecticidal protein toxic to the larvae of certain insects. This toxin gives the plant resistance to the targeted insect pests.