Gene
Step-by-step explanation:
- Gene is the part of DNA that codes for a particular protein and is responsible for a particular trait in an organism.
 - The begining of the gene is called the TATA box.
 - The TATA box is characterised by a 30 base pair sequence of TATATA... or TATAAAAAA.....
 - This sequence marks the begining of transcription region and is reconized by the TATA box protein.
 - The binding of TATA box protein directs the RNA polymerase to recognize this region bind to it .