Virus theory

Jay Mone' jmone at MARAUDER.MILLERSV.EDU
Wed Apr 15 13:46:06 EST 1998


Rachel,
Since viruses are obligate intracellular parasites (totally dependent 
on host cells for replication), it is reasonable to assume that the 
present-day forms of viruses are actually "escaped genomes".  It isn't 
too hard to imagine that an ancestral cell possessed a piece of DNA 
that somehow managed to encapsidate itself and escape from the cell 
from which it originated.  This seems much more likely than the idea 
that viruses evolved before their host cells.  What is more difficult 
to envision is the origin of minus sense RNA viruses, and 
double-stranded RNA viruses, which needed to also develop their own, 
unique RNA polymerases to allow them to replicate.

By the way, what happened to your breast milk experiments?

Jay MOne'



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