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Genetic Engineering

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Genetic Engineering

Genetic engineering is the concept of being able to use enzymes to “cut and

paste” genes from one organism to the next.


A key example of this is the use of insulin. In type 1 diabetes some people can

not produce effective insulin. So therefore insulin can be taken from a healthy

insulin cells.


They can then be transferred to bacteria, which reproduce quickly and can be

used to form drugs.




Genes can also be transferred into plants. In plants it is also very important as

it can be used to make plants resistant to certain pests or viruses to ensure

that farmers have a higher yield.



Advantages and disadvantages of genetic engineering:



⇒   GM crops will help to increase the yield as more plants are likely to survive


⇒   People in developing nations will be able to get more food as plants can be

engineered to have more nutrients




⇒   GM crops will reduce the biodiversity as it will reduce the number of weeds



⇒   Some people are worried that GM crops may not be safe
⇒   There are concerns that the genes for resistance that are in the plants may

get transferred to other pests and weeds



Related Topics

Variation                                      Genes, Chromosomes And DNA

Sexual Reproduction               Asexual Reproduction