A gene from another organism was inserted into a variety of potato plant. Scientists compared this genetically modified (GM) variety with a non-GM variety grown under the same conditions.
| Condition | Yield of non-GM variety in one year / tonnes per hectare | Yield of GM variety in one year / tonnes per hectare |
|---|---|---|
| Disease absent | 36 | 34 |
| Disease present | 18 | 30 |
In one region, the disease is expected to be present in three of the next four years. The same area of land will be planted each year.
Explain why growing the GM variety is likely to improve food security in the region over the four years. Use calculations and data from the table.
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.