Eukaryotic Transcription
The process of transcription in Eukaryotes initiates in the Nucleus. The mRNA travels out of the nucleus and moves to the cytoplasm, where the process of translation takes place. The process of Eukaryotic transcription includes three stages. These stages are- initiation, elongation, and termination. The initiation stage of the Eukaryotic transcription is complex, compared to other stages of transcription. In addition, the stage of termination has no stem-loop figures or relations. The process of transcription carries three enzymes. These enzymes are- RNA Polymerases I, RNA Polymerases II, and RNA Polymerases III. Each one of these Eukaryotic Enzymes includes twelve or more subunits and these are huge complex enzymes.
Prokaryotic Transcription
The process of transcription in Prokaryotes initiates in the Cytoplasm. RNA processing is not required in Prokaryotes. This is because the structural gene in prokaryotes is polycistronic in nature. This process of transcription is also known as Bacterial transcription. Here, a portion of the bacterial DNA is copied to a newly synthesized thread of mRNA. This is later converted for producing proteins with the help of the RNA Polymerase Enzymes. This process takes place in three stages. These stages are- Initiation, Elongation, and Termination.
Difference
| Eukaryotic Transcription |
Prokaryotic Transcription |
| Eukaryotic Transcription takes place inside of the Nucleus. |
Prokaryotic Transcription takes place in the Cytoplasm. |
| In eukaryotic Transcription, combinational translation and transcription are not possible. |
In Prokaryotic Transcription, combinational translation and transcription are possible. |
| In Eukaryotic Transcription, proteins known as Transcriptional factors are needed. |
In Prokaryotic Transcription, no such proteins are needed. |
| The process of transcription carries three enzymes. These enzymes are- RNA Polymerases I, RNA Polymerases II and RNA Polymerases III. |
The process of transcription carries just one enzyme. This enzyme synthesises all other types of RNA. |
| This process includes five polypeptides. |
This process includes ten to fifteen polypeptides. |
