Free Republic
Browse · Search
News/Activism
Topics · Post Article

To: AndrewC
I don't need to establish that EVERY cellular response to a stress involves the use of error prone DNA polymerase to illustrate WHY error prone DNA polymerase is expressed in a bacterial cell during stress.

Some novelty in evolution comes about through regulated cellular responses. The stress response that leads to expression of error prone DNA polymerase is one such regulated cellular response - and it DOES lead to novelty in evolution.

Care to describe to me how some 8% or less of the bacterial genome can be a “tote bag” for innumerable ‘discarded’ mutations for every possible gene in the bacterial genome for every possible stress it might encounter?

Besides if you even agree that there IS such a thing as novelty in evolution - as Shapiro posits - why would it have to come from some “tote bag”?

If it was there but unused until it was needed it wouldn't be “novel” now would it?

405 posted on 10/07/2011 1:13:20 PM PDT by allmendream (Tea Party did not send the GOP to D.C. to negotiate the terms of our surrender to socialism.)
[ Post Reply | Private Reply | To 404 | View Replies ]


To: allmendream
I don't need to establish that EVERY cellular response to a stress involves the use of error prone DNA polymerase to illustrate WHY error prone DNA polymerase is expressed in a bacterial cell during stress.

No, but it is to support your assertion that it is directly involved in the response to insult.

Care to describe to me how some 8% or less of the bacterial genome can be a “tote bag” for innumerable ‘discarded’ mutations for every possible gene in the bacterial genome for every possible stress it might encounter?

No, it only has to tote some things.

Besides if you even agree that there IS such a thing as novelty in evolution - as Shapiro posits - why would it have to come from some “tote bag”?

It doesn't just have to come from the tote bag. But there are things that are important to have. Speaking of bacteria, their tote bag also involves the outside world. So the bacterial tote bag carried within the cell can be smaller than otherwise. If you had listened to the lecture carefully, you would understand that.

408 posted on 10/07/2011 1:31:33 PM PDT by AndrewC
[ Post Reply | Private Reply | To 405 | View Replies ]

Free Republic
Browse · Search
News/Activism
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson