Three different types of RNA polymerase exist in eukaryotic cells ... for production of protein molecules. The first step in transcription is initiation, when the RNA pol binds to the DNA upstream ...

For instance, bacteria contain a single type of RNA polymerase, while eukaryotes (multicellular ... require a mechanism by which transcription can be regulated in order to achieve spatial and ...

eukaryotic cells is essential ... selectively without harming human cells. The Steps of Protein Synthesis In prokaryotes like bacteria, transcription and translation can occur simultaneously ...