Breeding and genetic engineering

3 lessons in Inheritance, variation and evolution.

15 exam questions · 36 marks

6.19 Selective breeding How humans breed plants and animals for particular characteristics over many generations, examples such as disease-resistant crops, high-yield animals, gentle dogs and large flowers, and the risks of inbreeding. AQA Edexcel OCR 5 questions 6.20 Genetic engineering How genes are cut from one organism and inserted into another using enzymes and vectors, examples such as bacteria making human insulin and GM crops, and the benefits and risks of genetic engineering in farming and medicine. AQA Edexcel OCR 5 questions 6.21 Cloning plants and animals How plants are cloned by cuttings and tissue culture, and animals by embryo transplants and adult cell cloning (as with Dolly the sheep), with the uses, benefits and risks of cloning. Separate only AQA Edexcel 5 questions