Scientists genetically engineered a variety of maize. The GM maize and non-GM maize were grown under the same conditions.
| Maize variety | Yield in tonnes per hectare |
|---|---|
| Non-GM | 5.2 |
| GM | 6.7 |
A country uses 1.2 million hectares of land to grow maize. Its population is predicted to reach 30 million.
Each person requires 0.24 tonnes of maize per year. Assume that all the maize produced is available as food.
Using calculations, explain how replacing the non-GM maize with GM maize could affect food security when the population reaches 30 million.
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.