difference between self pollination and cross pollination

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 self pollination, 

  • the pollination takes place within the single flower.
  • pollengrains from the pollen tube moves to the stigma of the same flower.
  • it requires no agents like wind, water etc.
  • there is less variation.


cross pollination,

  • the pollen grains moves from one flower to another flower.
  • it requires agents like air, water etc.
  • pollination takes place in two different flowers.
  • there is much more variation.



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