Polyadenylation

Polyadenylation is a process in cells where a string of adenine nucleotides, called a poly-A tail, is added to the end of an mRNA molecule after it's been created. This tail helps protect the mRNA from degradation, assists in its exit from the nucleus, and improves its ability to be translated into a protein. Essentially, polyadenylation acts as a molecular cap that ensures the mRNA is stable and functional, enabling the cell to efficiently produce proteins as needed.