Unique change in protein structure guides production of RNA from DNA

One of biology's most fundamental processes is transcription. It is just one step of many required to build proteins -- and without it life would not exist. However, many aspects of transcription remain shrouded in mystery. But now, scientists are shedding light on key aspects of transcription, and in so doing are coming even closer to understanding the importance of this process in the growth and development of cells -- as well as what happens when this process goes awry.