Transcription
The sigma factor

accomplishes DNA restriction
is responsible for recognizing the termination sequence
provides the catalytic function of cleaving off pyrophosphates during mRNA synthesis
recognizes the promotor

ANSWER DOWNLOAD EXAMIANS APP

Transcription
The location of first hexameric sequence typically found in pro-karyotic promoters is

approximately 35 bases upstream of the transcription start site
approximately 25 bases upstream of the transcription start site
approximately 10 bases upstream of the transcription start site
at the transcription start site

ANSWER DOWNLOAD EXAMIANS APP