Alternation of Generations For sexually reproducing multicellular organisms such as plants and animals, the life cycle requires that diploid cells divide by meiosis to create haploid cells. It is differentiated into roots, rhizome and leaves.
Alternation of generations definition is - the occurrence of two or more forms differently produced in the life cycle of a plant or animal usually involving the regular alternation of a sexual with an asexual generation. Alternation of generations is a type of life cycle that switches between two forms, the asexual polyp and the sexual medusa. It is the alteration of sexual phase and asexual phase in the life cycle of organism. In some animals, there is an alternation between parthenogenic and sexually reproductive phases . (iii) Alteration of generation is the type of life cycle that occurs in plants and some protists that have distinct sexual haploid and asexual diploid stages. Alternation of generations is a reproductive cycle of certain vascular plants, fungi, and protists. In mosses and their relatives (Bryophytes), the haploid gametophyte is the dominant generation, and the diploid sporophytes are sporangium-bearing stalks growing from the gametophytes. Heteromorphic alternation of generations means that there is a sporophyte version of the plant and a gametophyte version of the plant that each participate in that plant species’s life cycle.

But with vascular plants, because they have all kinds of specialized tissues, things get a little more convoluted. sporophyte. Answer to: What is the alternation of generation in bryophytes (botany)? their alternation of generations process is about as simple as it gets. The other form is the haploid gametophyte with n chromosomes. Alternation of generations is characteristic of land plants. In this case, an organism will have 2n chromosomes in its diploid cells and 1n chromosomes in its haploid cells. The term is a bit confusing for people familiar only with the life cycle of a typical animal. The other form is the haploid gametophyte with n chromosomes. Alternation of generation is defined as the alternation of multicellular diploid and haploid forms in the organism's life cycle. In an isomorphic alternation of generations (found in some algae, for example) the sporophyte and gametophyte are morphologically similar or identical; in a heteromorphic alternation of generations they are dissimilar (e.g. Alternation of generations The occurrence in one life history of two or more different forms differently produced, usually an alternation of a sexual with an asexual form.

in mosses the gametophyte is the dominant and conspicuous generation… In bryophytes (mosses and their ilk), the gametophytes are the bigger generation but in other land plants, sporophytes are bigger. The gametophyte plant (or plants) make the gametes. All land plants have alternation of generations. This has sometimes been called "alternation of generations", but is quite different. Alternation of generation is defined as the alternation of multicellular diploid and haploid forms in the organism's life cycle. [Design ideas] Inheriting from the bloodline of the previous generation, it covers the memories of growing up as a child, especially the spirit of deferred thoughts and culture of the loved ones.

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