The viral genome is packed inside a symmetric protein capsid, composed of either a single or multiple proteins, each of them is encoding a single viral geneFirstly, the 'information' part of DNA is the nitrogenous base, as opposed to the pentose sugar or the phosphate residues In a singlestranded molecule, this important part would be exposed to the cellular environment, providing more opportunity for it to be mutated by the various chemicals"NMD also helps us combat viral infections, which is why many viruses either inhibit or evade NMD," she adds "The genome of the virus COVID19 is a positivesense, singlestranded RNA It is well known that other positivesense, singlestranded RNA viruses evade NMD by having RNA structures that prevent NMD from degrading viral RNAs"
Virus Structure And Replication
