Transcription Process | DNA to mRNA | Class 12 Biology & NEET | types of RNA

We have learned how DNA replicates itself. Now, it's time to learn how DNA gives orders to the cell!

In today's video on Molecular Basis of Inheritance, we start the topic of Transcription (The first step of Gene Expression).

How is genetic information copied from DNA to RNA? Why is only one strand copied? What is a Transcription Unit?

We will answer all these questions in this lecture. This video covers the process of Transcription in Prokaryotes and the structure of the Transcription Unit.

Topics Covered in This Video:
Central Dogma: Flow of information (DNA \rightarrow RNA \rightarrow Protein).
Why only one strand? Why don't both DNA strands get transcribed? (NCERT Reasoning).
Transcription Unit: Structure and function of Promoter, Structural Gene, and Terminator.
Coding vs. Template Strand: The biggest confusion cleared! (Which one is actually read?).
The Process (Prokaryotes):
Initiation: Role of RNA Polymerase & Sigma (\sigma) factor.
Elongation: Formation of RNA.
Termination: Role of Rho (\rho) factor.




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