Science
Gene regulation.
Definition
The processes by which cells control when, where, and how much of a gene's product (usually protein) is made. Gene regulation allows cells with identical DNA to have different functions and respond to environmental changes.
Examples
Real-world.
- 1 The lac operon in E. coli turning on only when lactose is present
- 2 Stem cells differentiating into muscle or nerve cells by activating different genes
- 3 Hormones like estrogen activating specific gene transcription