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About Seaweeds

Figure 5. The isomorphic life cycle of Ulva (sea lettuce). The haploid sexual plants, gametophytes (A, B and D, E), produce morphologically similar gametes (C, F), which sexually fuse (G, H). The resulting zygote (fertilized gamete) (I) develops into the diploid spore-producing phase, the sporophyte, (J–M), which produces spores by meiosis (reduction cell division) (N, R). These spores develop into the new gametophyte generation (O–Q, S–U).

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syngamy

meiosis

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