Regulation of gene expression refers to the process by which cells control the expression of genes. There are several synonyms for this phrase, including gene regulation, gene expression control, transcriptional regulation, and genetic control. Gene regulation plays a crucial role in ensuring that cells maintain proper levels of protein expression, which can impact a variety of cellular processes, including development, differentiation, and disease. Ultimately, understanding the mechanisms underlying gene regulation is essential for developing new treatments for a range of diseases, including cancer and genetic disorders. As such, researchers continue to investigate new approaches to better understand and control gene expression.