A sporophyte is a generation of a plant or alga that has a double set of chromosomes. The sporophyte produces spores by meiosis and they develop into a gametophyte. Both the spores and the gametophyte only have one set of homologous chromosomes. The gametophyte produces male, female or both gametes by mitosis and the combining of male and female gametes produces a zygote that develops into a new sporophyte.
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