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Alternation of Generations

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Alternation of Generations A type of life cycle found in plants that alternates between 2 different versions of adult plants the sporophyte and the gametophyte plant – PowerPoint PPT presentation

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Title: Alternation of Generations


1
Alternation of Generations
  • A type of life cycle found in plants that
    alternates between 2 different versions of adult
    plants
  • the sporophyte and the gametophyte plant

2
  • The Sporophyte plant produces spores, which after
    released, will germinate and each spore will grow
    into a new plant (the gametophyte)
  • The Gametophyte plant produces gametes, (eggs and
    sperm). After an egg and sperm unite
    (fertilization), the zygote will germinate and
    grow into a new plant (the sporophyte)
  • The lifecycle continues, with sporophyte plants
    reproducing gametophyte plants and visa versa
    alternating between the two plant types

3
Sporophyte
spores
gametes
gametophyte
4
Moss Sporophyte Gametophyte
  • Sporophytes
    Gametophytes (attached)

5
Fern Sporophyte Gametophyte

  • Gametophytes
  • Sporophytes

rhizoids
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