It must occur in the nucleus where the DNA in the cell is located. However, once mRNA is produced, it leaves the nucleus and protein synthesis – translation – occurs in the cytoplasm. Keeping this in view, how do you transcribe DNA into RNA? It involves copying a gene's DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template). Transcription has three stages: initiation, elongation, and termination. how does RNA polymerase know where to start transcribing a gene into mRNA? RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene . RNA polymerase binds to a gene's promoter to initiate mRNA synthesis. Besides, where does DNA transcription occur? Transcription takes place in the nucleus. It uses DNA as a template to make an RNA molecule. RNA then leaves the nucleus and...