Genetic engineering is an important tool for researchers. Genetic information from a wide range of organisms are transformed into bacteria for storage and modification, creating genetically modified bacteria in the process.
Once a gene is isolated, it can be stored inside the bacteria, providing an unlimited supply for research-and bacteria are easy to grow, easy to store, cheap, easy to multiply, and easy to transform.
However, we must remember that there are dangers involved with genetic engineering, since it involves creating completely new strains of bacteria. There is a possibility of creating some which are harmful to animal or plant life.