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).
Transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors.Transcription factors can bind to specific DNA sequences called enhancer and promoter sequences in order to recruit RNA polymerase to an appropriate transcription site.Together, the transcription factors and RNA polymerase form a complex called the transcription initiation complex.he newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA).