RNA polymerase (green) attaches to a DNA strand and produces RNA.
During transcription, a DNA sequence is transformed into an RNA sequence by an enzyme known as RNA polymerase.
RNA polymerase is an enzyme that assists in the recap process by copying a DNA sequence into an RNA sequence.
An RNA polymerase can be a protein complex (multi-component RNAP) or just have one subunit (single-subunit RNAP, ssRNA), each of which denotes a distinct lineage, depending on the organism.
Yes, the protein (enzyme) RNA polymerase catalyzes the synthesis of RNA from DNA.