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
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