A regulatory network refers to a collection of genes, proteins, and other molecules that interact with each other to control various cellular processes such as gene expression, signal transduction, and metabolic pathways. In the context of biology, a regulatory network helps to understand how different molecules work together to regulate biological functions such as growth, development, and response to environmental stimuli. Researchers studying regulatory networks typically use a combination of experimental techniques, computational modeling, and bioinformatics tools to map out the interactions between different molecules and identify key components that are responsible for controlling specific cellular processes. Understanding these regulatory networks can provide insights into disease mechanisms, drug targets, and potential therapeutic interventions. Overall, research in the field of regulatory networks aims to unravel the complexity of biological systems and elucidate the underlying mechanisms that govern cellular functions.