Alternation of generation refers to life cycles where organisms have two different multicellular stages. One is diploid and another is haploid. Haploid is a cell or an organism having half of the number of chromosome in somatic cells. Diploid is a cell or an organism consisting of two sets of chromosomes. Alternation of generation could also represent the life cycle of plants. The picture represents an example of alternation of generation. It is both multicellular diploid and multicellular haploid. On the undersurface of its base or leaves, it goes through meiosis to create haploid cells.