[A mechanism of transcription in prokaryotes: stages and place in the realization of genetic information]

Transcription, being the first stage on the way of genetic information realization, is the most important to regulate expression of genes. It is a complex process in procaryotes. At different stages it is controlled by definite systems of a cell, that in the end, provides a regulated information flow initiating all processes which proceed in the organisms. At present the problem of the gene activity regulation plays a key role in the molecular biology and intensively develops both in theoretical and applied aspects.