Question

Assertion A: In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.

Reason R: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.

In the light of the above statements, choose the correct answer from the options given below:

पर्याय

• Both A and R are true but R is NOT the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

• Both A and R are true and R is the correct explanation of A.

Answer 1

A is true but R is false.

Explanation:

It is true that in gymnosperms, air currents carry the pollen grains that are discharged from microsporangia during pollination. Although air currents do contribute to the movement of pollen grains, they do not reach the mouth of the archegonia. The male gametes are transported to the area of the ovule via the pollen tube, which is made of pollen grains. Fertilisation results from this.