Re: Are humans irreducibly complex?

Susan Brassfield (susan-brassfield@ou.edu)
Wed, 2 Jun 1999 16:20:05 -0600

> In reply to David Tyler
>Hi David,
>
>lots of reasonable comments by open minded people today. I'm especially
>grateful for the web site. I''d be interested in hearing comments about the
>following web site:
>
>http://www.scientificamerican.com/0997issue/0997infocus.html
>
I had wondered if the stress of the situation itself caused the fast
mutation rates. Looks like the answer is "maybe, maybe not!"

this is a very interesting article, thanks!

>It seems to me somewhere in this research lies an area of compromise.
>Creationists could find room for claiming it was part of of God's design.

They can and do anyway. Evidence is nice, but not required.

>Agnostics could settle for Nature's design. The Darwinists are already
>claiming "evolvability" is a trait which itself evolved--by random mutation
>and natural selection, I suppose. (Old ideas don't just fade away; their
>supporters die off.)

". . . in natural populations of bacteria, "mutator genes," which increase
the mutation rate, can spread through a population by allowing the bacteria
to evolve faster. Paradoxically, this happens even though mutations
produced by the mutator genes, like others, are on average harmful. The
seemingly impossible occurs because mutators occasionally arise in
individuals that also carry an advantageous gene. In an asexual population,
the mutator may then spread with the advantageous gene, a phenomenon called
the hitchhiking effect. "

How do you suppose this occurs?

Susan

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