Pollination Strategy Evaluation
15 Essay & Discussion Questions · Sections A–C
Discuss the effect of cross-pollination on a population's capacity to respond to environmental change.
Explain how cross-pollination increases the chance that harmful recessive alleles are masked in the offspring.
A new fungal disease attacks a crop. Suggest why a field of cross-pollinated plants is more likely to survive the disease than a field of self-pollinated plants.
Describe the role of meiosis in ensuring that cross-pollination leads to genetic variation in offspring.
Suggest why plant breeders prefer cross-pollination when developing new varieties of crop plants.
State one advantage of self-pollination in terms of reproductive success.
Explain why self-pollination is advantageous for isolated plants growing in remote habitats.
Suggest why self-pollination is beneficial for plants that grow in environments where animal pollinator populations fluctuate seasonally.
A farmer grows self-pollinating crops in a remote field with few insect visitors. Explain why this strategy maintains consistent yields year after year.
Discuss both a genetic advantage and a reproductive advantage of self-pollination for a plant species.
Explain why a reliance on cross-pollination can be a disadvantage for a plant species.
Suggest how the widespread use of pesticides that kill insects could threaten plant species that rely on cross-pollination.
Evaluate the long-term survival of a plant population that has switched entirely to self-pollination due to the extinction of its pollinator.
Compare the reproductive strategies of self-pollination and cross-pollination, evaluating the trade-offs between reliability of reproduction and adaptability of the population.
A plant species lives in a dense tropical forest where pollinators are abundant. Discuss whether this species would benefit more from cross-pollination or self-pollination, justifying your answer.
Cambridge IGCSE Biology 0610 · Topic 16.3 Pollination Evaluation · Limitless Platform
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