explain the structure of male gametophte in angiosperm
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Microspore or the pollen grain represents the initial cell of male gametophyte. ... The generative cell of the pollen grain divides by mitosis and forms two haploid non motile gametes. Pollen tube consisting of the two male gametes and a degenerating tube nucleus represents the male gametophyte
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The functions of the gametophytes are the production of the 'sperm cells and the female cells, and their union in fertilization. In flowering plants, the pollen grain is the male gametophyte and the embryo sac is the female gametophyte. The male gametophyte completes its early development within the anther.
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