 Post-transcriptional modification

Post-transcriptional modification refers to the various processes that modify RNA molecules after they have been synthesized from DNA but before they are translated into proteins. These modifications are crucial for the proper functioning of RNA and include several key processes: 1. **Capping**: In eukaryotic cells, the 5' end of the newly synthesized messenger RNA (mRNA) molecule is modified by the addition of a 7-methylguanylate cap.