Termination signal
Appearance
A termination signal is found at the end of the part of the chromosome being transcribed during transcription of mRNA. It is needed because only parts of the chromosome are transcribed. The beginning part is started at the promoter and then ended at the termination signal.
References
Merrill, Dr. Gary F. 'Transcription', lecture notes distributed in Biochemistry 451 General Biochemistry, Oregon State University, Weigend on 6 June 2006.