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 produces a messenger RNA (mRNA) molecule. The second step is translation of the mRNA. Translation produces a protein molecule. During transcription, the sequence of nucleotides in the gene in the DNA is copied into a corresponding sequence of nucleotides in mRNA.