Functional Genomics is a branch of genomics that focuses on understanding the roles and functions of genes and their products. It aims to determine how genes interact with each other and with the environment to influence biological processes. This field utilizes various techniques, including gene expression profiling and gene knockout studies, to explore gene function. By analyzing the data generated from these techniques, researchers can identify the specific functions of genes and their contributions to traits and diseases. This knowledge is crucial for advancing fields like medicine, agriculture, and biotechnology, as it helps in developing targeted therapies and improving crop yields.