WHAT IS IEC 60601-1. IEC 60601 is a series of technical standards. for the safety and effectiveness of medical. electrical equipment. The primary standard governing medical device. design is IEC 60601-1 (medical electrical equipment. - Part 1: general requirements for basic safety and. essential performance).
Figure 1: A gene is expressed through the processes of transcription and translation. 1  During transcription, the enzyme RNA polymerase (green) uses DNA as a template to produce a pre-mRNA transcript (pink).
The three primary types of RNA molecules are messenger RNA, transfer RNA and ribosomal RNA. Messenger RNA (mRNA) plays an important role in the transcription of DNA. Transcription is the process in protein synthesis that involves copying the genetic information contained within DNA into an RNA message.