What are the effects when transcription factors bind to spec

Solution

Gene transcription is the first step in protein synthesis. A group of transcription factors assemble at the promoter region of DNA, and bind to TATA box to change its shape. This event exposes the binding sites of other transcription factors. After several of these events, RNA polymerase binds.

The binding of RNA polymerase to the promoter site starts the process of transcription. There are three different classes of RNA polymerases that bind to different promoter sites and transcribe different parts of genome. The terminator present at another end of the genome signals the completion of transcription, thus terminating the programme.