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).
all kind of RNA ; including mRNA , tRNA and rRNA are involved in translation and play their specific roles in their appropriate place. mRNA bring codes for translation tRNA bring suitable amino acid rRNA makes spatial structure for translation as a result A , B and C can be your answer.