Revised: Endogenous retroviruses, when it comes to replication, definitely have a role in the RNA [arena], as well as the DNA that carries the "modification;" that is why we are either immune to or more susceptible to certain diseases. This is where I was headed ghostfoot.
Edit: Let me clarify this...I'm not talking about creationism. I am talking about a molecular basis for the evolution of viruses which, in the case of endogenous retroviruses, seem to contribute to human evolution. Any questions?