Posted: Apr 12, 2020 3:11 am
by Wortfish
Rumraket wrote:
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.

By specific/peculiar, I mean a component that is new, not something recruited from an existing inventory.

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.

You can't seriously claim that the bacterial flagellum, or eukaryotic cilium, are just a bunch of proteins thrown together. Rather, both represent a "purposeful arrangement of parts" that produce a specific function...i.e. design rather than random assemblage.