Well, in the same exact way that we have these promoter sections that initiate the process of transcription, we also have these termination sections, termination sites or termination sequences that essentially terminate or end the process of transcription. So essentially, the RNA polymerase will continue transcribing until it reaches a termination sequence. So in this particular diagram, this is our gene and this is our termination sequence. Now, what's so special about the termination sequence that it allows this process to basically end? Well, the termination sequence usually codes for a special type of structure on that RNA molecule, for example, a hairpin. And when that hairpin structure is formed, that RNA polymerase molecule will spontaneously dissociate from that RNA molecule.