Alternation of Generations:
A life cycle where plants alternate between haploid (n) and diploid (2n) generations, involving both gametophyte and sporophyte stages.
Alternation of Generation in Fern:
- Sporophyte Stage (2n): The dominant stage. Sporophytes produce spores through meiosis in structures called sporangia.
- Spore Formation: Spores are released and develop into a gametophyte.
- Gametophyte Stage (n): The gametophyte produces gametes (sperm and eggs) through mitosis.
- Fertilization: Sperm fertilizes an egg, forming a zygote.
- Embryonic Sporophyte: The zygote develops into a new sporophyte, completing the cycle.