Scientists genetically modify strawberry plants so that the fruit ripens more slowly. Two consignments are stored and transported under the same conditions.
| Consignment | Mass packed / kg | Mass discarded before sale / kg |
|---|---|---|
| Genetically modified strawberries | 1500 | 90 |
| Unmodified strawberries | 1250 | 225 |
Calculate the percentage reduction in the proportion of packed fruit that was discarded for the genetically modified strawberries compared with the unmodified strawberries.
Give your answer to three significant figures.
100 exam-style questions on Edexcel GCSE Biology 4.3 Selective breeding and genetic modification, covering 4.3.1 Selective breeding and its impact, 4.3.2 Tissue culture, 4.3.3 Genetic engineering overview, 4.3.4 Main stages of genetic engineering, 4.3.5 Advantages and disadvantages of GM organisms, 4.3.6 Agricultural solutions for a growing population, and 4.3.7 Evaluating genetic engineering and breeding. Each one has a worked solution and a mark scheme showing where the marks go.