The grapevine (Vitis vinifera) naturally synthesizes a polyphenolic compound known as resveratrol.
Suggest why cells in these plants produce resveratrol.
Scientists have engineered genetically modified bacterial strains of Escherichia coli to synthesize industrial-scale quantities of resveratrol in fermenters.
Explain how bacterial cells can be genetically modified to synthesize resveratrol.
Explain how an industrial fermenter can be used to cultivate these bacterial cells and optimize their growth rate.
30 exam-style questions on Edexcel IGCSE Biology Genetic modification (genetic engineering). Each one has a worked solution and a mark scheme showing where the marks go.