16 March 2014

#111 Self-pollination and cross-pollination

Credit: TutorVista
Self-pollination - transfer of pollen from the anther to the stigma of the same flower, or to another flower of the same plant.
Cross-pollination - transfer of pollen from the anther of a flower to the stigma of a flower on a different plant of the same species.







Self-pollination

Source: DNA2life
  • chance of successful pollination à smaller numbers of pollen
  • chance of fertilisation and seed formation
  • variation in the offspring.
  • ability to adapt to environmental change.


Cross-pollination


  • ↓ chance of successful pollination à large amounts of pollen
  • ↓ chance of fertilisation 
  • variation
  • ability to adapt to environmental change. 



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