|Molecular biology is the study of development, structure and function of macromolecules vital for life. It deals with the molecular basis of biological activity and overlays genetics and biochemistry. It concerns about the various system of a cell and interaction among various biomolecules and covers a broad scope of problems related to molecular and cell biology. A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.