Over several decades, intensive selective breeding in aquaculture has been used to develop highly productive strains of farmed Atlantic salmon (Salmo salar), selected primarily for rapid growth rate, high flesh quality, and delayed maturity.
Explain, with reference to selective breeding, why it is of vital importance to conserve and maintain genetically diverse populations of wild Atlantic salmon in their natural river habitats.
22 exam-style questions on OCR A A Level Biology Classification and evolution. Each one has a worked solution and a mark scheme showing where the marks go.