Question

________ and ________ are the male gametophyte and female gametophyte of the flowering plants, respectively.

• A. Embryo sac, pollen grain
• B. Pollen grain, embryo sac
• C. Prothallus, protonema
• D. Pollen grain, ovule

Answer 1

The correct option is B Pollen grain, embryo sac

The gametophytic generation is highly reduced in angiosperms. Pollen grain represents the male gametophytic generation and embryo sac represents the female gametophytic generation Pollen grains have two cells, one vegetative and one generative cell. Generative cell divides and forms two male gametes.

Embryo sac is 7 celled and eight nucleated.

The gametophyte of pteridophytes is called prothallus.

Protonema develops from the spore in bryophytes. Protonema is a filamentous structure that has buds. Buds on protonema develop into adult gametophytes.