An electrophoresis machine is a lab instrument that separates charged molecules (like DNA, RNA, proteins) in a gel or liquid using an electric field, sorting them by size and charge as smaller/lighter ones move faster. Essential in molecular biology, genetics, and forensics, these devices power research, diagnostics (e.g., for anemia), and drug development, ranging from simple gel systems to automated capillary electrophoresis units, offering precise analysis of biological samples.