A group of pheasants has been bred over many generations for bright plumage. A disease now affects pheasants. A conservation centre plans to breed some birds from this group with pheasants from a separate wild population.
Explain how this plan could reduce losses if another disease outbreak occurs.
80 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.