The mitochondrial DNA (mtDNA) is a small circular genome positioned within the mitochondria in the cytoplasm of the cell. The mitochondrial genome can be dispersed into two sections: a large coding region, which is accountable for the production of various biological molecules involved in the process of energy production in the cell, and a smaller 1.2 kilobase pair fragment, called the control region. 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. Which is suitable for STR analysis due to insufficient concentration of nuclear DNA or heavy degradation processes.