Posted: Apr 10, 2020 11:49 pm
Wortfish wrote:Rumraket wrote:
LOL. First you mindlessly ask for an example of a molecular machine that evolved by mutation and natural selection. I then point out that since all known molecular machines in biology evolved by mutation and natural selection, the molecular machines of life are what things that evolve by mutation and selection look like.
I note that you are just making an unsupported assertion without any evidence.
You can just google stuff you know. I suggest you go read the paper "evolution of increased complexity in a molecular machine" for example.
Wortfish wrote:Rumraket wrote:So then you come back and wave your hands incoherently in the direction of Michael Behe, who said nothing of relevance to what you were first asking.
Behe has shown that many molecular machines, like the bacterial flagellum, could not have evolved by random mutation and natural selection.
I note that you are just making an unsupported assertion without any evidence.
Wortfish wrote:Rumraket wrote:It doesn't need foresight to do that. I just needs to retain components with useful functions when they are added together. That's it. No foresight needed.
So a mutation increases the complexity of some structure by adding a component, and if that mutation is beneficial natural selection will preserve it.
What you are proposing is exaptation...the rewiring of existing parts to make something new.
Yes, simple. We know it happens and there are examples. Go googling, the evidence is out there. Stop wasting your time trying to argue about this.
Wortfish wrote:This is wrong on two accounts:
No it's not wrong for any of the shit reasons you concoct.
Wortfish wrote:
1. Many molecular machines need specific/peculiar components (like new protein-coding genes), not just generic ones.
Ahh the "specific / peculiar compotent" as opposed to the "generic" one. What the hell does that mean? Either two components work together or they do not. Some times they do, and when they do, natural selection can favor that association.
Wortfish wrote:
2. Machine functionality is not produced by simply assembling parts together haphazardly.
Turns out it some times is.
Yeah some of them do this just by themselves. Some proteins will naturally oligomerize into structures like pentamers, hexamers, octamers or what have you. Naturally oligomerizing structures, created by a single protein all by itself. A single protein coding gene is expressed continously, and as the number of proteins build up they self-assemble into larger structures. Good examples are evolution of beta-propeller structures. A bona fide molecular machine that evolved.
See this as an example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4735018/
Turns out they do.