repressors

Repressors are molecules that regulate gene expression by preventing genes from being turned on. They work by binding to specific DNA regions near a gene, blocking the cellular machinery needed to produce proteins. Think of repressors as switches that keep certain genes inactive until they're needed. They play a crucial role in maintaining control over how cells function, respond to changes, and develop properly. Repressors are essential for coordinating complex biological processes and ensuring genes are expressed only at appropriate times and conditions.