Potential benefits and risks of genetic engineering
There are many benefits to using genetic engineeringA process of changing the structure of a particular gene, usually to remove defects.. It is used in agriculture to do things such as, improve the yieldThe mass of a crop produced. of important economic crops, and provide insect or pest resistance. It is also used in the medical field to create insulinA hormone that regulates the level of sugar in the blood and can be produced by genetically modified bacteria., which can be used for treating diabetesA serious disease in which the body is unable to regulate blood sugar.. But, as with most new technology, it also carries potential risks.
Benefits of genetic engineering:
- Genetic engineering is a faster and more efficient way of getting the same results as selective breedingAn artificial process in which organisms with desired characteristics are chosen as parents for the next generation..
- Improve crop yields or crop quality, which is important in developing countries. This may help reduce hunger around the world.
- Introduce herbicide resistance, which results in less herbicides being used, as weeds are quickly and selectively killed.
- Insect resistance from Bacillus thuringiensis can be inserted into the plants. The plant produces toxins, which would discourage insects from eating the crop.
- Sterile insects could be created, such as mosquitoes. They would breed with fertile mosquitos, but be unable to reproduce. This would reduce the number of offspring and may help with spread of diseases, such as malaria, dengue fever and the Zika virus.
Risks of genetic engineering:
- Transfer of the selected geneThe basic unit of genetic material inherited from our parents. A gene is a section of DNA which controls part of a cell's chemistry - particularly protein production. into other species. What benefits one plant may harm another.
- Some people believe it is not ethicalRelating to right and wrong, eg ethical companies are often ones that act in a responsible way. to interfere with nature in this way. Also, genetically engineered crop seeds are often more expensive and so people in developing countries cannot afford them.
- Genetically engineered crops could be harmful, for example toxins from the crops have been detected in some people's blood.
- Genetically engineered crops could cause allergic reactions in people.
- Pollen produced by the plants could be toxic and harm insects that transfer it between plants.