DNA polymerase and RNA polymerase are important enzymes in that they help to catalyze the formation of polymers of RNA and DNA from their existing strands. Polymerization is an important process through which DNA strands are formed. When deoxyribonucleotide, which acts as a basic monomer polymerizes, DNA polymerase helps to hasten the process. DNA polymerase helps greatly in the replication of DNA.
DNA polymerase also helps in detecting DNA strands that can be used to create new ones. On the other hand, RNA polymerases are important enzymes in the transcription process. During this process, the DNA molecule separates, and the two polynucleotide strands in it also separate, thereby leading to the synthesis of an RNA molecule.
The enzyme that hastens this process is known as RNA polymerase. In other words, RNA polymerases are important enzymes that hasten the formation of RNA molecules from DNA. Unlike DNA polymerases that can't initiate a new strand without a primer, RNA polymerases can initiate a new strand.