Evolution (Evolution)

by David Turell , Friday, January 16, 2009, 00:35 (5789 days ago) @ George Jelliss


> Quote from the article: The replicating system actually involves two enzymes, each composed of two subunits and each functioning as a catalyst that assembles the other. The replication process is cyclic, in that the first enzyme binds the two subunits that comprise the second enzyme and joins them to make a new copy of the second enzyme; while the second enzyme similarly binds and joins the two subunits that comprise the first enzyme. In this way the two enzymes assemble each other — what is termed cross-replication. To make the process proceed indefinitely requires only a small starting amount of the two enzymes and a steady supply of the subunits.
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> Is this chance or law? It looks quite mechanical to me. - I think we can all agree that chance events are passive. Yes they actively appear and may cause advances or regression, but as George has pointed out they are not purposeful and represent no plan. In no way is this understanding an active process. Also, Laws of nature cannot do anything by themselves; they describe ways in which matter may act or interact, and unless specific substances try to act, nothing happens. Laws are also passive. - The first RNAzyme that was found that could replicate itself did so at a 95% efficiency, but only after a computer search of several hundred trillions of RNA molecules were considered.