Sporophyte is a organism or cell which has two sets of chromosomes or twice the haploid number . Sporophtye produces by spores by a process of reduction division  .

Gametophyte is a organisms or cell having a single set of chromosomes.The mature gametophyte produces male or female gametes or both.
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sporophyte have many pair of chromosomes so they also k\nown as haploids while in gametophyte there have single pair of chromosomes.
                                                                                     plz mark it best
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