In this article we will discuss about:- 1. Meaning of Transcription 2. Mechanism of Transcription 3. Transcription in Eukaryotes. Meaning of Transcription: Transcription is the process by which a complementary RNA strand is synthesised from a specific region of DNA. The three different types of RNA are transcribed from different regions of DNA. The genes that transcribe mRNA are called [...]
The below mentioned article provides a note on the process of transcription. Transcription is the process of copying genetic information from one strand of the DNA into RNA. In transcription, only a segment of DNA or only one out of the two stands is copied into RNA. Unlike replication, which once set in, the total length of DNA of organisms [...]
Let us make an in-depth study of transcription (synthesis of RNA) in prokaryotes and eukaryotes. Transcription in Prokaryotes: In prokaryotic organisms transcription occurs in three phases known as initiation, elongation and termination. RNA is synthesized by a single RNA polymerase enzyme which contains multiple polypeptide subunits. In E. coli, the RNA polymerase has five subunits: two α, one β, one [...]