Question
Differentiate between haplontic and diplontic life cycles.
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S.No.
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Haplontic Life cycle
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Diplontic Life cycle
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(a)
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The haploid phase is dominant and the diploid phase is represented only by the zygote.
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The diploid phase is dominant and single-celled or few celled gametophytes are the only haploid phase in the life cycle.
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(b)
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Zygote undergoes meiosis; embryo and sporophyte are absent, e.g. Algae such as Spirogyra.
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Zygote develops into an embryo and then into a sporophytic plant, e.g. Gymnosperms and angiosperms.
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