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In genetics, a transcription terminator is a section of nucleic acid sequence that marks the end of a gene or operon in genomic DNA during transcription.
At the 5' end of a gene we find a promoter and often a CpG island. Both of these elements regulate the transcription of a gene. At the 3' end of a gene we find a stop sequence, and a signal for polyadenylation (AAUAAA). Transcription is the process of copying the genetic information in DNA into RNA.This is done by the enzyme RNA polymerase which binds to a region called a promoter found at the 5 end of a gene. The binding of RNA polymerase is tightly regulated by many proteins called transcription factors.t the 5' end of a gene we find a promoter and often a CpG island. Both of these elements regulate the transcription of a gene. At the 3' end of a gene we find a stop sequence, and a signal for polyadenylation (AAUAAA). Transcription is the process of copying the genetic information in DNA into RNA.