Not sure how relevant anyone might find this but Buudhist believe in "dependent arising" which is to say everything is interdependent- probably more vastly and subtly connected than anyonre is aware.
From my own experience:
I have experiened insights beyond my own frame of perception, that I am pretty sure extend beyond my personal ability to address, or even know actually.
Such as if a visually impaired cat, with only one eye would be ok when it went missing overnight. I had the gut feeling, viserally tangible, it would be found, hours before it was. I am in Washington state, said cat was in Arkansas.
My point is, we are all connected. We are all part of a living system and this system knows stuff, stuff that we don't know on the personal level of empirically based experirence.
I hope this is a relevant reply to your thoughtful post.
To restate: it seem as if we are all part of this really big living system that has a more complex and comprehensive cohesion than we are aware of, --- examining changes in molecular structures (DNA) is akin to looking at a 'result' or a 'symptom' so to speak. As best I can tell.