A GM crop produces a protein that kills the insect pests that feed on it. The crop is grown in the same area for many seasons.
Which is a possible risk of growing this crop?
Pests with an allele for surviving the protein could become more common.
The gene for the protein could pass into the pests that eat the crop.
Each pest could build up immunity to the protein after feeding on it.
The crop could lose the gene for the protein after a few generations.
127 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.