Genetic engineering is the process of altering the DNA of an organism in order to change its traits. It is a powerful tool that can be used to create new organisms with desired characteristics, such as resistance to disease, increased nutritional value, or the ability to produce pharmaceuticals. The products of genetic engineering include transgenic organisms, which are organisms that have had foreign genes inserted into their DNA, and gene-edited organisms, which have had their own genes altered using techniques such as CRISPR-Cas9. These organisms can have a wide range of applications, such as in agriculture, medicine, and industry.