Microalgae can be genetically modified (GM) to accumulate high levels of lipids (oils) for biofuel production when grown under nitrogen-deprived conditions.
Describe an investigation that could be carried out to find out if these lipid-producing GM microalgae yield a higher lipid mass per litre of culture than normal, non-GM microalgae when grown in nitrogen-deprived liquid medium.
Your answer should include experimental details and be written in full sentences.
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.