Some good articles there. The only problem I have is that virus particles are very destructive to the host cell and the organism they invade. Only a retro virus will incorparate itself into the DNA of an organism and would have to disrupt an active coding region ( insert between start - stop sequences) to alter gene regulation and expression. My real question would be "could the organism survive such a change for long enough to pass on its altered DNA

. I guess that depends on where the viral DNA ends up. It would then have to be incorperated into the gamets of a sexually reproducing organism to be passed on. Very interesting all the same, so many questions, so much to learn

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Mark