Simplify the following text for a Grade 14 native English-speaking person.
Original: This article also describes research by Christof Biebricher showing the formation of RNA molecules 400 bases long under freezing conditions using an RNA template , a single-strand chain of RNA that guides the formation of a new strand of RNA .
Simplified: This article also describes research showing the formation of RNA molecules 400 bases long under freezing conditions using an RNA template , a single-strand chain of RNA that guides the formation of a new strand of RNA .