What is the importance of alternation of generations to the life of a moss and a fern?

  • There is rapid multiplication as spores are normally produced in large numbers
  • Spores can survive harsh conditions and germinate when conditions are favorable
  • Spores leads to formation of different varieties since meiosis takes place during their formation.
  • Fertilization restores diploid chromosome number. Production of gametes by mitosis ensures that the haploid gametophyte state is maintained. This maintains the plant genome.
  • Alternative between gametophyte and sporophyte generations ensures that the plant colonizes different habitats in the ecosystem.
  • Interdependence between gametophyte and sporophyte generation ensures existence of both generations and avoids extinction of the plant species.
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