Molecular biology:

Molecular biology (sometimes abbreviated bio. Mol.) Is a scientific discipline of life at the intersection of genetics, metabolic biochemistry and physics, the object of which is the understanding of the functioning mechanisms of the cell at the molecular level. . The term “molecular biology”, used for the first time in 1938 by Warren Weaver, also designates all the techniques for manipulating nucleic acids (DNA, RNA), also called genetic engineering techniques.

Molecular biology appeared in the twentieth century, following the development of the laws of genomics, transcriptomics, proteomics, metabolomics) of molecular biology to more specifically study the cells of microorganisms.