What is the function of RNA polymerase? It unwinds the double helix and adds nucleotides to a growing strand of RNA. RNA polymerase has several functions in transcription, including unwinding the DNA double helix and adding RNA nucleotides.Click to see full answer. In this manner, which of the following is a function of RNA polymerase?RNA polymerase (green) synthesizes RNA by following a strand of DNA. RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription. RNA polymerases have been found in all species, but the number and composition of these proteins vary across taxa.Subsequently, question is, what is the main function of tRNA? Transfer RNA, or tRNA, is a member of a nucleic acid family called ribonucleic acids. RNA molecules are comprised of nucleotides, which are small building blocks for both RNA and DNA. tRNA has a very specific purpose: to bring protein subunits, known as amino acids, to the ribosome where proteins are constructed. Consequently, what is RNA polymerase and what is its function? A RNA polymerase (RNAP), or ribonucleic acid polymerase, is a multi subunit enzyme that catalyzes the process of transcription where an RNA polymer is synthesized from a DNA template.Which is a function of the RNA polymerase complex quizlet?RNA polymerase II is an enzyme found in eukaryotic cells. It catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA.