My guess this "destruction" is NOT in the DNA. I would have tried to model the "space" dielectrically first. The explaination is too involved and no one has taken me up on the preverted twist so I will not say any more than that i think genetic inversions are twistless spring creators... but this only gets me to page 6 in Gould's book.
We may have to think of "beneficial viruses" as we already do bacteria. My argument for this involves use of Cantor's number classes so this is much even more too involved than what I wanted to write in the first paragraph above.
Thanks for brining this up a second time.