<P> Transcription has some proofreading mechanisms, but they are fewer and less effective than the controls for copying DNA . As a result, transcription has a lower copying fidelity than DNA replication . </P> <P> Transcription is divided into initiation, promoter escape, elongation, and termination . </P> <P> Transcription begins with the binding of RNA polymerase, together with one or more general transcription factor, to a specific DNA sequence referred to as a "promoter" to form an RNA polymerase - promoter "closed complex". In the "closed complex" the promoter DNA is still fully double - stranded . </P> <P> RNA polymerase, assisted by one or more general transcription factors, then unwinds approximately 14 base pairs of DNA to form an RNA polymerase - promoter "open complex". In the "open complex" the promoter DNA is partly unwound and single - stranded . The exposed, single - stranded DNA is referred to as the "transcription bubble ." </P>

Where does transcription begin or where is the transcription start site
find me the text answering this question