When does self-pollination occur
Self-pollination occurs when pollen from a flowerlands on the stigma of the same flower or a different flower of the same plant.
What effect does self-pollination have on genetic variation
Reduces genetic variation as both gametes are from the same individual.
What does self-fertilised species depend on
Self-fertilised species depend on random assortment and crossing over during meiosis, and on mutation to bring about variation in the genomes of male and female gametes. This increases chance of interbreeding depression occurring.
What are most flowering plants adapted to do
Most flowering plants are adapted to reduce the amount of self-pollination that occurs. The lack of variation does help preserve successful genotypes.
