A crop was genetically modified by inserting a gene that made the crop resistant to an insect pest.
Scientists grew the genetically modified crop in one field and a non-genetically modified crop in another field. They tested wild plants of a closely related species for the inserted gene.
| Type of crop in field | Distance from field in m | Number of wild plants tested | Number of wild plants containing the inserted gene |
|---|---|---|---|
| Genetically modified | 10 | 40 | 8 |
| Genetically modified | 100 | 80 | 8 |
| Genetically modified | 500 | 100 | 0 |
| Non-genetically modified | 10 | 50 | 0 |
Explain how the results support a valid objection to growing genetically modified crops.
87 exam-style questions on AQA GCSE Biology 7.5 Food production, covering 7.5.1 Factors affecting food security, 7.5.2 Farming techniques, 7.5.3 Sustainable fisheries, and 7.5.4 Role of biotechnology. Each one has a worked solution and a mark scheme showing where the marks go.