Haplontic Life Cycle: In this life cycle, the dominant, free-living phase is the haploid gametophyte. The diploid phase is represented only by the single-celled zygote, which undergoes immediate meiosis to produce haploid spores.

Ustilago : As a member of the fungi (Basidiomycetes), Ustilago exhibits a life cycle where the multicellular stage is primarily haploid (or dikaryotic), and the diploid stage is limited to the zygote formed just before meiosis.

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