Electrophoresis

Definition

A technique used to separate charged molecules, such as DNA fragments, proteins, or RNA, based on their size and charge. It involves applying an electric current through a gel matrix containing the molecules.

Etymology

From Greek 'elektron', meaning 'amber' (a naturally occurring electrically charged substance), 'phorein', meaning 'to carry'.

Example

Electrophoresis is used to separate DNA fragments of different sizes.

Related Terms

• Gel
• DNA
• Proteins

Usage Notes

Different types of electrophoresis exist, including gel electrophoresis, capillary electrophoresis, and pulsed-field gel electrophoresis.