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What do you mean by the alternation of a generation? Explain. |
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Answer» In plants, both haploid and diploid cells can divide bymitosis. This ability leads to the formation of differentplant bodies haploid and diploid. The haploid plantbody produces gametes by mitosis. This plant bodyrepresents a gametophyte. Following fertilisation the zygote also divides by mitosis to produce a diploidsporophytic plant body. Haploid spores are producedby this plant body by meiosis. These in turn, divide bymitos is to form a haploid plant body once again. Thus,during the life cycle of any sexually reproducing plant,there is an alternation of generations between gameteproducing haploid gametophyte and sporeproducingdiploid sporophyte. |
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