Is Human DNA as good as it gets?

Your cousin has a child by mating with an individual neither of you are related to.Do you suddenly gain any portion of that individual's genes, even though you're related to their offspring? No. Neither does human DNA contain any genes except those we inherited from our ancestors and those we developed ourselves. So too have all the other species on earth developed genes that we simply don't have. Every single living organism on the planet has gone through just as much evolution as we have; in most cases, considerably more. That's a considerable amount of time for them to develop genetic sequences that have nothing to do with ours. There isn't really a food "chain." It's a food web, when you get right down to it. Plants use the sun and nutrients from decomposers in the soil to create sugars; animals eat the sugars; those animals are eaten by other animals, those animals die and are eaten by soil decomposers, those soil decomposers are eaten by plants and combined with energy from the sun to create sugars....You get the idea. Humans are no more at the top of a food "chain" then they're at the top of an evolutionary "ladder", or indeed, at the top of anything. It's anthrogenic ego of the most common sort, unfortunately.

I wouldn't say it doesn't come close; many genetic sequences are "conserved"; that is, they don't change much over time, or among individuals in a population.There's clues to be had, if you know how to look. But, no rewinding the DNA to First Edition doesn't seem to be possible.Anyway, I don't like to say "primitive." What's primitive in a contemporary context? Are bacteria "primitive", even though they're the most successful lifeform - by far - the Earth has ever known? Bacteria are adapted to their many varied environments, just as anything else is; evolution didn't stop for bacteria any more than it stopped for lizards or mammals or apes."Simpler" is perhaps a better term. Bacteria are definately simpler than metazoan life, like humans.

Ok, but the implied chronological relationship isn't there, either. I would hazard a guess that I'm older, by far, than almost every single living bacterium on the planet. In that sense, I'm the one who came first. Oh, I see. You're agreeing with me. Ok.