Pros & Cons of Genetic Modification

Biology: Cambridge International GCSE Supplement, topic 21.3.4

Pros and Cons of Genetically Modified Crops

The pros and cons of genetically modified (GM) crops are listed below:

Pro - increased yields

Pro - increased yields

Pro - provide missing nutrients

Pro - provide missing nutrients

  • They could help to provide the nutrients that are often missing from the diets of those living in developing nations.
  • E.g. golden rice can help reduce vitamin A deficiency, which can cause blindness.
Pro - so far, so good

Pro - so far, so good

  • GM crops are popular in some parts of the world and no complications have been experienced so far.
Con - reduced biodiversity

Con - reduced biodiversity

  • Some people expect GM crops to negatively impact wild flower and insect populations, thus reducing biodiversity.
Con - effects on human health

Con - effects on human health

  • Some people think that there will be long-term effects of consumption on human health.
Con - creation of 'superweeds'

Con - creation of 'superweeds'

  • If transplanted genes managed to escape into the natural environment, we could accidentally create a ‘superweed’ that is resistant to herbicides.

Test yourself on Pros & Cons of Genetic Modification

  • Which of the following is not an advantage of GM crops?

  • What does GM stand for?

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