If the RNA polymerase attaches to the promoter region of the gene, would it form the initial mRNA segment by reading the promoter region or would it slide across the DNA then read the adjoining region? Or does the enzyme span so long that its certain region attaches to the promoter while its adjacent region starts reading the DNA to form mRNA?
Does the RNA polymerase read DNA base pairs and add the complementary RNA base pairs one by one? Or, does it read groups of base pairs just like tRNA which reads triplet of bases?
Is the terminator region transcribed as well before the process of transcription ends, or does transcription end immediately after the RNA polymerase reaches the terminator region? If the latter is the case, how does transcription end just by the polymerase reading the terminator region?
So, should the promoter and terminator regions of a gene be considered parts of the gene or separate entities?