GCSE Combined Science (AQA)

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Evaluating Genetic Engineering

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Inheritance, Variation and Evolution Variation and Evolution

Evaluating Genetic Engineering

2:10 Genetic Engineering in Agriculture
Spec 4.6.2.4
Previous Concerns about GM crops Next Fossils
  • To assess if the benefits of genetic engineering outweigh the costs, it's essential to understand the effects.
  • Exam questions may ask to identify specific benefits and risks of genetic engineering and make informed judgments.
  • Example exam question: Evaluate the decision to make crops resistant to a moderately toxic herbicide, Oxil.
  • Step one: Identify potential advantages, such as allowing farmers to spray herbicide without harming the crop, leading to only weeds being killed.
  • Step two: Link advantages to consequences, such as reduced competition from weeds, resulting in higher crop yields.
  • Step three: Identify potential disadvantages, like the possibility of herbicide resistance passing to wild plants.
  • Step four: Link disadvantages to consequences, such as uncontrollable weed growth and increased herbicide use, which could impact human health.
  • In exams, if required to make an overall judgment, the question will specify. Otherwise, just evaluate the decision based on provided information.

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