A farmer grows potatoes. He plants potato tubers from last year's crop. Each tuber grows into a new potato plant.
All the plants in his field were produced from the tubers of a single plant.
A disease called potato blight spreads into the field. Nearly all the plants in the field are killed.
Explain why nearly all the plants in the field were killed.
Give one advantage to the farmer of growing potatoes from tubers.
Suggest one way the farmer could reduce the risk of losing his whole crop to a disease in the future.
40 exam-style questions on Edexcel GCSE Biology 3.1 Reproduction and meiosis, covering 3.1.1 Advantages and disadvantages of reproduction and 3.1.2 Role of meiotic cell division. Each one has a worked solution and a mark scheme showing where the marks go.