The enzyme RNA polymerase works to produce primary transcript RNA, according to Nature Education. This makes it possible for cells to use DNA genes as templates to create chains of RNA, a process that is known as transcription.
RNA polymerase initiates DNA transcription at the right time, ensures that the right sequences are transcribed and produces the RNA strand that perfectly complements the DNA strand that was copied. RNA polymerase is also capable of making RNA strands longer by adding additional nucleotides, a process that is known as elongation. All of these processes are fundamental to the production of DNA in every living creature.