which of the following regulatory elements is not composed of dna sequences
The transcriptional region is the part of DNA to be transcribed into a primary transcript (an RNA molecule complementary to the transcriptional region). The regulatory region can be divided into cis-regulatory (or cis-acting) elements and trans-regulatory (or trans-acting) elements.he transcription region consists of exons and introns. The regulatory elements include promoter, response element, enhancer and silencer (not shown). Downstream refers to the direction of transcription and upstream is opposite to the transcription direction.