A risk of growing GM crops is that

  1. they need more insecticide
  2. they cannot be eaten
  3. yields always fall
  4. modified genes may spread to wild plants
Answer

D) modified genes may spread to wild plants

Gene flow to wild relatives is a concern. O Level Biology · Topic 18 Biotechnology and Genetic Modification · 18.2 Genetic modification

Biology MCQ · More O Level Biology: Biotechnology and Genetic Modification MCQs · Practise