Scientists want to conserve a rare species of plant. Only a few plants of this species are left.
The scientists remove small pieces of meristem tissue from the plants and grow the pieces on agar jelly. Each piece grows into a new plant.
Explain why the scientists use meristem tissue to produce the new plants.
All the new plants are genetically identical.
Explain one disadvantage of this for the survival of the species.
It is much more difficult to grow a whole new animal from a small piece of tissue taken from an adult animal.
Explain why.
46 exam-style questions on Edexcel GCSE Biology 2.2 Stem cells, covering 2.2.1 Function of stem cells and meristems and 2.2.2 Benefits and risks of stem cells. Each one has a worked solution and a mark scheme showing where the marks go.