Question

Assertion (A): The exine of a pollen grain is made up of a resistant material called sporopollenin.

Reason (R): Pollen grain intine has prominent apertures called germ pores where sporopollenin is absent.

विकल्प

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

• Both assertion (A) and reason (R) are true, but reason (R) 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

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

Explanation:

The assertion is true: exine contains resistant sporopollenin. The reason is false because germ pores are regions of the exine where sporopollenin is absent, not apertures in the intine.