What are the functions of (i) methylated guanosine cap, (ii) poly-A "tail" in a mature on RNA?
The function of Methylated Guanosine Cap: It regulates nuclear export of mRNA. It promotes translation. (Fully processed hnRNA Is called mRNA).
The function of Poly-A Tail: Protects RNA from degradation by exonucleases. Plays an important role in transcription termination.