Over the whole world, the demand for food to feed the growing human population is increasing.
State one key factor causing this increasing demand for food.
Genetic modification (GM) is a technology used to help address food security.
Explain what is meant by the term genetic modification.
Besides increasing crop yield, suggest two other features of crops that scientists can alter using genetic modification.
In a survey, 250 people were asked to choose one statement they agreed with regarding GM crops. The table shows the results.
| Statement | Number of people choosing statement | |
|---|---|---|
| Negative | GM crops are bad for the environment. | 38 |
| GM crops are unsafe to eat. | 44 | |
| GM crops cost too much to develop. | 28 | |
| Positive | GM crops can reduce global hunger. | 52 |
| GM crops need fewer chemical pesticides. | 48 | |
| GM crops can have improved nutritional value. | 40 |
Calculate the percentage of people in this survey who have a negative opinion of genetic modification.
25 exam-style questions on OCR GCSE Biology 6.2 Feeding the human race, covering 6.2.1 Biological factors affecting food security, 6.2.2 Agricultural solutions to growing demand, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, 6.2.5 Steps in genetic engineering, 6.2.6 Benefits and risks of gene technology in agriculture, and 6.2.7 Biotechnological solutions to growing demand. Each one has a worked solution and a mark scheme showing where the marks go.