Re: [asa] flagella

From: David Opderbeck <dopderbeck@gmail.com>
Date: Wed May 23 2007 - 09:49:17 EDT

Thanks, Pim, for the objective assessment.

On 5/22/07, PvM <pvm.pandas@gmail.com> wrote:
>
> First of all a warning:
>
> The published article is not without controversy and Nick Matzke and
> others have explained in great depth their concerns with the accuracy
> of the article.
> http://www.pandasthumb.org/archives/2007/04/flagellum_evolu_1.html
>
>
> Their concern is even stronger because the article suggests that this
> is evidence against ID and thus ID proponents could make a great case
> out of how 'science got it wrong'.
>
> As far as genes having common precursors, this does not necessarily
> solve the whole question but it shows that the concept of gene
> duplication and specification is hardly without support. Irreducible
> complexity works on the flawed presumption that the function of genes
> cannot change.
>
> On 5/22/07, David Opderbeck <dopderbeck@gmail.com> wrote:
> > This is an interesting article, but I'm uncertain why it has such major
> > implications for the ID debate. The article suggests that the genes
> that
> > regulate the proteins in bacterial flagellar systems have a common core
> of
> > ancestral genes. Why does that, in itself, suggest that the system as a
> > whole arose through the gradual modification and cooption of mechanical
> > parts? I'm not seeing how showing that the genes have common precursors
> > solves the problem of the irreducible complexity of the particular
> > assemblage of mechanical components built from the proteins expressed by
> > those genes. I suspect someone like Behe would say " yeah, I don't
> reject
> > common descent, so I'm not surprised that these genes derive from a
> common
> > source; my point isn't about the lineage of the underlying genes, it's
> about
> > the unique assemblage of the components built from the proteins
> expressed by
> > those genes ." Or maybe my lack of facility with this literature is
> > clouding the significance of this paper for me?
> >
> >
> >
> > On 5/22/07, D. F. Siemens, Jr. <dfsiemensjr@juno.com> wrote:
> > > /Science/, 316:799 (11 May 2007) has a summary of an article in /Proc.
> > > Natl. Sci. U.S.A./, 104:7116 (2007) on the evolution of the genes
> > > involved in the bacterial flagella. "I can't imagine ..." again fails.
> > > Dave
> > >
> > > To unsubscribe, send a message to majordomo@calvin.edu with
> > > "unsubscribe asa" (no quotes) as the body of the message.
> > >
> >
> >
>

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Received on Wed May 23 09:49:28 2007

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