what is ulternation of generation???
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Alternation of generations, also called metagenesis or heterogenesis, in biology, thealternation of a sexual phase and an asexual phase in the life cycle of an organism. The two phases, or generations, are often morphologically, and sometimes chromosomally, distinct.
Stages
The life cycle of the fern has two different stages; sporophyte, which releases spores, and gametophyte, which releases gametes. Gametophyte plants are haploid, sporophyte plants diploid. This type of life cycle is called alternation of generations.
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Metagenesis or Heterogenesis
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