So these are the viruses that contain the RNA molecules that serve directly as the mRNA. So once our plus stranded RNA virus inject the RNA into the cytoplasm that same RNA is used to translate into proteins to synthesize those proteins. However, in minus trend RNA viruses the viral RNA that is injected into the cytoplasm must first be transcribed must first be modified into the mRNA before it can actually be used to synthesize our protein. So this is the major difference between plus transit RNA virus and minus trans RNA virus. So let's basically go over the summary of the differences between DNA viruses and RNA virus. Three major differences basically exist.