A farmer clones one disease-resistant wheat plant to produce a whole field of wheat. Which is the main risk of growing the crop in this way?
The plants are genetically identical, so they cannot be attacked by any disease
The plants are grown from meristem tissue, so they take longer to reach full size
The plants are grown without seeds, so they cannot be harvested by machine
The plants are genetically identical, so one new disease could destroy them all
63 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.