So a small section of the tail of the premna is removed and instead we add many adenosine nucleotides. And this tail, this three and tail is now known as the polyatail. So in this type of post transcriptional modification the three end of the precursor mRNA is removed and a series of adenosine nucleotides are added. And therefore the three end tail that contains the many adenosine nucleotides is known as the polyadenosine tail or the polyadenine tail. Now, just as the five cap adds the ability to resist different types of degradation in the cytoplasm and gives our mRNA stability, the polyatail also provides the mRNA with stability and keeps the tail from degrading in the cytoplasm of the cell. And it also AIDS in the transport of our mRNA from the nucleus to the side of plasma of our cell.