The 5' cap of RNA is required for the
stability of RNA only
stability and transport of RNA
transport of RNA only
methylation of RNA
The 5' cap structure m7GpppN (where N is any nucleotide) is a ubiquitous feature of cellular eukaryotic mRNAs. The cap is multifunctional as it is involved in translation, nucleocytoplasmic transport, splicing, and stabilization of mRNA against 5' exonucleolytic degradation. Hence, the correct answer is option 2.