Molecular Biology is a branch of biology that understands and analysis the molecular structure, composition and functioning of cellular molecules. It deals with different disciplines including biology, chemistry, genetics and biochemistry. In other words, molecular biology strives to understand how genes get transcribed to RNA which in turn gets transcribed as proteins. In this process, there are various interactions taking place between cells involving a lot of functions and processes of DNA, RNA and protein synthesis.

Researchers predominantly make use of targeted techniques of molecular biology. Often times, these techniques are used in combinations with genetics and biochemistry. Molecular biology takes deeper look at the various molecular mechanisms such as replication, transcription, or translation of genetic materials.