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Discuss how self-pollination and cross-pollination can impact a population regarding variation, adaptability to environmental changes, and dependence on pollinators.

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Cambridge IGCSE BiologyReproductionSupplement content

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Discuss how self-pollination and cross-pollination can impact a population regarding variation, adaptability to environmental changes, and dependence on pollinators

  • This point belongs to Sexual reproduction in plants, especially Sexual reproduction in plants outcomes.
  • You need to be able to discuss how self-pollination and cross-pollination can impact a population regarding variation, adaptability to environmental changes, and dependence on pollinators.
  • The key ideas to know are Discuss.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

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Discuss

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Description

Pollination Types

Self-pollination involves pollen fertilizing the same flower or another flower on the same plant. Cross-pollination involves pollen transfer between different plants, often requiring pollinators.

  1. a

    State one effect of self-pollination on genetic variation in a plant population.

    Aim for approximately 1 distinct marking point.

    [1]
  2. b

    Identify one advantage of cross-pollination compared to self-pollination.

    Aim for approximately 1 distinct marking point.

    [1]
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