Genetic engineering is the process of manipulating an organism's DNA to bring about desired traits or characteristics. It involves inserting, deleting, or modifying specific genes within an organism's genome. This technique can be used in various fields including agriculture, medicine, and research. For example, in agriculture, genetic engineering has been used to create crops with increased resistance to pests or tolerance to environmental conditions. In medicine, it has been applied to develop treatments for various genetic disorders or to create genetically modified organisms (GMOs) that produce drugs or vaccines. Overall, genetic engineering offers a powerful tool for enhancing and improving organisms for different purposes.