Scientists transfer a gene from Bacillus thuringiensis into aubergine plants. The transferred gene is expressed in the plant cells.
Which observation would show that the protein produced by this gene has its expected biological effect?
Modified plants remain healthier than unmodified plants when exposed to a fungal disease.
Modified plants grow faster than unmodified plants when both are grown in salty soil.
Modified fruits contain more nutrients than unmodified fruits grown under the same conditions.
More larvae of a particular insect pest die after feeding on modified plants than after feeding on unmodified plants.
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.