rna polymerase (green sphere) is an enzyme that produces rna (right) from dna (down centre). in cells, rnapol constructs rna chains from dna genes as templates for protein synthesis, a process called transcription - rna polymerase stock videos & royalty-free footage00:13RNA polymerase (green sphere) is an enzyme that produces RNA (right) from DNA (down centre). In cells, RNApol constructs RNA chains from DNA genes as templates for protein synthesis, a process called transcriptionRNA, DNA, Helix Model