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Genetic Engineering


How is genetic engineering done? • Enzymes are used to cut useful genes from an organism's chromosomes • The useful genes are then inserted in to another organism
Give a use of genetic engineering.(4) • Insulin genes cut out from human DNA using enzymes • Enzymes used to cut bacteria DNA then the insulin genes inserted in to the bacteria • Bacteria grown in culture • Insulin produces and purified for medical use
How is genetic engineering used in animals and plants? Genes inserted in to DNA very early so the animal or plant develops the characteristics
What can you use genetic engineering in?(3) • GM crops resistant to herbicides, insects and viruses • Sheep milk to have drugs in it for human medicine • Gene therapy (replacing faulty genes with working ones)
What is a problem with genetic engineering? It could cause unplanned problems that could get passed on to future generations
Pros of GM crops.(3) • Can increase crop yield • Could be used to provide people with no access to nutrients
Cons of GM crops.(3) • Reduce farmland biodiversity by killing flowers and insects around flowers • Could carry allergies to the food • Resistance to herbicides could spread to weeds and create super weeds
Created by: GuyBrazier