Genome engineering is a scientific technique that allows researchers to modify an organism's DNA. This process can involve adding, removing, or altering specific genes to achieve desired traits or functions. Techniques such as CRISPR-Cas9 have made genome engineering more precise and efficient, enabling advancements in fields like medicine, agriculture, and biotechnology. By manipulating the genetic material, scientists can create organisms with improved characteristics, such as disease resistance in crops or potential treatments for genetic disorders in humans. Genome engineering holds great promise for addressing challenges in health, food security, and environmental sustainability.