Life Cycle Of Laminaria

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Life Cycle Of Laminaria

aria, a brown alga, involves alternation of generations. In Laminaria, the sporophyte is a large seaweed with several leaflike blades. The gametophytes are short, branched filaments. Drag the labels onto the flowchart below to describe the life cycle of Laminaria. Not all labels will be used.
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1. A multicellular, diploid sporophyte produces haploid spores through meiosis. 2. Unicellular, haploid spores divide by mitosis to produce haploid gametophytes. 3. Multicellular, haploid gametophytes produce haploid gametes. 4. Male and female haploid gametes fuse to produce a diploid zygote. 5. The diploid zygote matures into a multicellular, diploid sporophyte. The figure below shows the alternation of generations in Laminaria. A diploid sporophyte produces haploid spores though meiosis. Haploid spores undergo mitosis, producing haploid gametophytes. Male and female gametophytes produce haploid gametes, which fuse to form a diploid zygote. The zygote grows and matures into a diploid sporophyte.
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