Question

The microscopic pollen grains of the past are obtained as fossils. Mention the characteristic of the pollen grains that makes it happen. Name the cells present in a pollen grain.

Answer 1

The resistant sporopollenin in the pollen-wall exine allows pollen grains to persist and be preserved as fossils. A mature pollen grain contains a vegetative cell and a generative cell; in some species it is shed after the generative cell has divided into two male gametes.