Biology - Biotechnology - Principles and Processes Question with Solution | TestHub

Gel electrophoresis is a technique used in molecular biology to separate macromolecules such as DNA, RNA, or proteins.

In the case of DNA, the fragments are negatively charged and move towards the anode under an electric field through an agarose gel matrix.

The gel acts as a sieve, allowing smaller DNA fragments to move faster and further than larger ones. Thus, gel electrophoresis is specifically used for the separation of DNA fragments on the basis of their size.