The promoter site and the terminator site for transcription are located at

Options

A. 3’ (downstream) end and 5’ (upstream) end, respectively of the transcription unit
B. 5’ (upstream) end and 3’ (downstream) end, respectively of the transcription unit
C. the 5’ (upstream) end of the transcription unit
D. the 3’ (downstream) end of the transcription unit

Answer

B