In this article we will discuss about the changes in chromatin structure during transcription. Displacement of nucleosomes: During transcription, some changes in the chromatin structure occur in the region of transcription. RNA polymerase is comparatively larger in size than the nucleosomes. The molecular weight of RNA polymerase is about 5,00,000 Daltons, while that of nucleosome is about 2,60,000 Daltons. Lewin [...]
In this article we will discuss about:- 1. Meaning of Transcription in Prokaryotes 2. Mechanism of Transcription in Prokaryotes 3. Reverse Transcription 4. Prokaryotic vs. Eukaryotic Transcription 5. Detection. Meaning of Transcription in Prokaryotes: Transcription is the process through which a DNA sequence is enzymaticaly copied by an RNA polymerase to produce a complementary RNA. The synthesis of RNA from [...]
In this article we will discuss about:- 1. Introduction to Transcription in Eukaryotes 2. Mechanism of Transcription in Eukaryotes 3. Transcription Factories 4. Reverse Transcription 5. Role. Introduction to Transcription in Eukaryotes: Transcription has been defined in various ways. Some definitions of transcription are given here. The synthesis of RNA from a single strand of a DNA molecule in the [...]