Scientists developed a genetically modified variety of millet for a region where many people eat millet every day.
Two similar communities took part in a study. One community continued to eat normal millet and the other community ate the GM millet.
| Measurement | Normal millet | GM millet |
|---|---|---|
| Yield in tonnes per hectare | 2.8 | 2.9 |
| Millet grains damaged by insect pests in % | 9 | 10 |
| Mass of a substance the body can turn into vitamin A in mg per 100 g of grain | 0.1 | 3.6 |
| Children affected by a lack of vitamin A before the study in % | 31 | 31 |
| Children affected by a lack of vitamin A after one year in % | 29 | 14 |
Using the data, explain the nutritional purpose of developing the GM millet.
Evaluate whether the yield and pest-damage results support two other possible reasons for developing the GM millet.
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.