Biology 9700 · AS & A Level · Natural and artificial selection
Natural and artificial selection — practice question
Evidence suggests that selective breeding started around 10000 years ago. Selective breeding has been important in helping to meet the worldwide demand for food.
(a)[5]
Introducing disease resistance into varieties of wheat is an example of selective breeding.
Outline the steps involved in introducing disease resistance into varieties of wheat.
(b)[2]
Suggest two possible disadvantages that may arise from selective breeding.
Worked solution & mark scheme
This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “choose plants that are resistant to disease” …