Nurturing Life Sciences
#Id: 4663
#Id: 10453
#Unit 4. Cell Communication and Cell Signaling
#Id: 559
#Unit 2. Cellular Organization
The O1 operator extends from position -5 just upstream of the mRNA start point to position +21 within the transcription unit.
#Id: 8397
#Id: 6854
#Unit 3. Fundamental Processes
#Id: 7065
The addition of the 3’-CCA is catalyzed by the enzyme tRNA nucleotidyltransferase, which functions as a nontemplate-directed RNA polymerase.