RE: The code that is DNA
December 17, 2019 at 12:55 pm
(This post was last modified: December 17, 2019 at 12:56 pm by Peebothuhlu.)
(December 17, 2019 at 12:44 pm)John 6IX Breezy Wrote: Well, I think the fact that there are marsupials in the Americas goes with your point about shifting surfaces. They're not all isolated to Australia, presumably because of those shifts. However, I think this overall idea of spreading goes against your point. Competition, it seems to me, has a greater effect within such pristine pockets. By restricting life to smaller location, resources are limited, and it makes sense for competition to have a more magnified effect. But if life is being spread all over, it allows for greater resources, and less competition.
The idea of DNA eating RNA is still a bit obscure. I've forgotten how DNA replicates; but in terms of doing anything else (primarily building proteins) it needs RNA to do it. Perhaps there is some bacteria that skips RNA and can go from DNA to protein; but in our bodies RNA is equally important to DNA.
*Sigh*
Okay.... my point in regards to mentioning the marsupials was as an illustration (Like me mentioning the terror birds) of how one biome over runs and errradicates another biome. Leaving aside that the underlying, fundamental biology is still the same between monotremes, marsupials, mammals etc.
So... how are the monotremes doing in the rest of the world? To highlight an even more obscure lineage that's managed to hang on thanks to continent spereration.
Again, with the DNA/RNA thing 'Hypothesis'.
At one point there was nothing BUT rna. That's all there was floating around. Taking in basic chemistry and converting it into more/further rna.
THEN, some how, DNA came on the scene. Maybe some rna smooshed together in just the right way *Shrug* but there it was.
DNA, being better than RNA at doing the replicating/surviving thing simply became ALL there was in/by way of organic chemstry. With RNA only remaining as a 'Stub' within the chemistry of DNA replication.
Cheers.
Not at work.