Transcription is a process that genetic information on the DNA copies into RNA and the DNA acts as the template for the new molecules of RNA. Transcription process begins with the DNA double helix unwinding as the hydrogen bonds holding the opposing bases breaks and the DNA strands are uncoupled. The process occurs within the cytoplasm of a prokaryote and in the nucleus of eukaryotic cells. Transcription process consists of three steps; initiation, elongation, termination, and are regulated by transcription factors that include protein products of the genes. The protein products regulate at postranscriptional levels every time.

Initiation of transcription begins with enzyme RNA polymerase that identifies and attaches to DNA at the promoter and transcription of the DNA template starts. An initiation complex forms by association of 50 proteins different from each other required by RNA polymerase II. RNA polymerase synthesizes polynucleotides of RNA from the template of DNA....
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