In conversion of DNA to RNA, enzyme required

RNA polymerase also is known as DNA-dependent RNA polymerase, is an enzyme that produces primary transcript RNA.In cells, RNAP is necessary for constructing RNA chains using DNA genes as templates, a process called transcription. RNA polymerase enzymes are essential to life and are found in all organisms and many viruses. In chemical terms, RNAP is a nucleotidyl transferase that polymerizes ribonucleotides at the 3&; end of an RNA transcript.