Question

Other name of pollen grain

Answer 1

Pollen grains are the male reproductive organs in a flower so they are called the male gametophytes.

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Answer 2

Pollen grains are represented as male gametophyte.

Pollen grains are produced from pollen mother cell by the process of microsporogenesis.

Pollen grains are generally spherical in shape and having teo prominent layers covered by the non degraded enzymes called sporopollenin.

Pollen grains have two layers outer exine and inner intine. Inner layer is fully continuous and the outer layer have some gaps called germ pore from which pollen tube arises.