What is tissue culture?
Growing a piece of tissue cut from a plant in a pot of moist compost
Growing small groups of cells taken from a plant on a growth medium
Growing new plants from the tissue of two parent plants after breeding
Growing an embryo from plant tissue that has been split into cells
44 exam-style questions on AQA GCSE Biology 6.2 Variation and evolution, covering 6.2.1 Variation, 6.2.2 Evolution, 6.2.3 Selective breeding, 6.2.4 Genetic engineering, and 6.2.5 Cloning. Each one has a worked solution and a mark scheme showing where the marks go.