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

Skip to comments.

Evolution's new wrinkle: Proteins with cruise control provide new perspective (DIRECTED MUTATION!)
Princeton University ^ | November 10, 2008 | Kitta MacPherson

Posted on 11/25/2008 10:22:41 AM PST by GodGunsGuts

A team of Princeton University scientists has discovered that chains of proteins found in most living organisms act like adaptive machines, possessing the ability to control their own evolution.

The scientists do not know how the cellular machinery guiding this process may have originated, but they emphatically said it does not buttress the case for intelligent design, a controversial notion that posits the existence of a creator responsible for complexity in nature...

(Excerpt) Read more at princeton.edu ...


TOPICS: Culture/Society; Miscellaneous; News/Current Events; Philosophy
KEYWORDS: creation; crevo; directedmutation; evolution; intelligentdesign
Navigation: use the links below to view more comments.
first previous 1-20 ... 241-260261-280281-300 ... 361-365 next last
To: muawiyah
If organism A is more has a body plan and functional needs that are closer to organism B than to organism C, then it follows that the genetic/epigenetic blueprint of organism A and B will be more similar to each other than to the blueprint of organism C. It is basic logic. To claim otherwise is to create a dilemma that can only be resolved by invoking miracles. Thus, it is clear the Evos are reading the data wrong, which isn't surprising given the fact that they believe mindless materialism is capable of creating super sophisticated organisms that mimic intelligent design.
261 posted on 11/26/2008 10:13:26 AM PST by GodGunsGuts
[ Post Reply | Private Reply | To 244 | View Replies]

To: GodGunsGuts
Hey, I used logic ~ and facts. Organism A, Organism B, and Organism C, all present day species, were at one time part of Organism D.

A linear view has them peeling off from the others in some sort of sequence. A more realistic view has them peeling off from each other, in part, and coming back together, in part, at different times.

Think of horses, donkeys and zebras.

Pretty obvious that they all share a very similar body plan, but what's the truth of their relationships ~ what does their DNA say?

Remember, donkeys and horses can currently reproduce with each other. Both can still breed with zebras. Yet, there are three Species of Zebra. All inhabit different areas, all have different chromosome counts.

Then, there's the "Ultimate Peoples Hero Horse" the Hippopotamus. They don't mix well with any of these guys! Yet, they have the body.

262 posted on 11/26/2008 10:22:45 AM PST by muawiyah
[ Post Reply | Private Reply | To 261 | View Replies]

To: muawiyah
"Sure it does ~ if, for example, the "error" that elicits the "fix" occurs every 125 years, but you do all your measurements BETWEEN "fixes", you missed the frequency of the "fix" and have not accounted for it at all."

Read what I am saying. I said if the rate was established independent of assumptions about the mechanism, then new knowledge about the mechanism doesn't change the rate.

You are disagreeing, then just assuming that the rate was established by studying the mechanism! That doesn't disagree with what I said. But you can't just assume the rate was established that way. I doubt very much that it did.

263 posted on 11/26/2008 10:34:48 AM PST by mlo
[ Post Reply | Private Reply | To 258 | View Replies]

To: GodGunsGuts
"If organism A is more has a body plan and functional needs that are closer to organism B than to organism C, then it follows that the genetic/epigenetic blueprint of organism A and B will be more similar to each other than to the blueprint of organism C. It is basic logic."

No, because you have hidden assumptions in there. It's not a matter of basic logic. You are assuming things about a linear relationship between genetic patterns and body plan that may not be true. Genetics is quite a bit more complex. Some very different genetic blueprints could create similar plans, and similar blueprints could create very different plans.

264 posted on 11/26/2008 10:37:12 AM PST by mlo
[ Post Reply | Private Reply | To 261 | View Replies]

To: mlo
The rates were established without knowledge of the rate of fixes. We just now discovered that the fixes even occur.

Everything must be RECALIBRATED.

265 posted on 11/26/2008 10:39:11 AM PST by muawiyah
[ Post Reply | Private Reply | To 263 | View Replies]

To: mlo

Back at you. The question I addressed was the causality question. I merely answered your challenge for proof of 1 + 1 = 2. Again, countless people more intelligent than you or I have wrestled with the question. They didn’t throw up their hands and say “We can’t know.” They attempted answers. Obviously none satisfy you. That does not mean you are right and every believer is wrong. You establish that you know the complete set of unknowable things or can prove the membership of any and all items in that set.


266 posted on 11/26/2008 10:40:30 AM PST by AndrewC
[ Post Reply | Private Reply | To 251 | View Replies]

To: GodGunsGuts
No small part of that mountain is the discovery of what Creation and ID scientists have been predicting all along—DIRECTED MUTATION!

Do you have documentation to support that IDers have theorized that directed mutation would be an indicator of intelligent design? If so, this would seem to be scientific evidence put to the test. Exactly what the Evo's claim ID NEVER does.

267 posted on 11/26/2008 10:44:12 AM PST by Ignatz (Too late; it's Obacalypse NOW!)
[ Post Reply | Private Reply | To 13 | View Replies]

To: muawiyah
"Everything must be RECALIBRATED."

For the reason I've already explained, this is not true.

268 posted on 11/26/2008 10:48:23 AM PST by mlo
[ Post Reply | Private Reply | To 265 | View Replies]

To: AndrewC
"I merely answered your challenge for proof of 1 + 1 = 2"

As I've already explained, I was asking you to actually prove 1 + 1 = 2.

"They didn’t throw up their hands and say “We can’t know.”"

Saying "we can't know" to an *unknowable* question isn't throwing up your hands. It's being honest and rational. That's all I'm trying to get across.

Certainly many people have made up answers, so what? *By definition* there is no way to know their answers to an unknowable question are correct.

269 posted on 11/26/2008 10:52:19 AM PST by mlo
[ Post Reply | Private Reply | To 266 | View Replies]

To: mlo
The same thing is guiding it that always has. The competition to reproduce.

"The competition to reproduce" is what GUIDES evolution? So the "competition to reproduce" is a force of some kind that is capable of ADDING complexity to living organisms and their sub-systems? "Competition to reproduce" is the guiding (intellegent) force behind evolution? Prove it.

"Designed itself"? No, design is not the right word.

Designed itself is the correct terminology. Fine, the competition to reproduce is what caused life to design itself and lifes' sub-systems to design themselves and natural selection is why life chose to keep the working mutations and abandon the bogus mutations. Is that better?

Final question: Is SETI science? The evolutionists act as if they OWN the definition of science and are so certain about what is and what is not science. Please explain why SETI is science, or admit that SETI is not science.

270 posted on 11/26/2008 10:56:48 AM PST by Diplomat
[ Post Reply | Private Reply | To 190 | View Replies]

To: mlo
The thesis is that mitochondrial DNA undergoes random mutations at a rate of change standard for the species being examined. If we know the rate of change we can work backwards with two species to see when they last were part of one breeding group (or species).

The problem the discovery of proteins that "fix" errors (mutations) presents to us is that this process will have its own rate of change. In the near term it may make little or no difference in the rate of change. Over a long period of time it may well be of vast importance, particularly if the fix rate has a large variance. (NOTE, taking a WAGuess I'm presuming there are proteins produced in the mitochondria that fix "non coding sequences", not just genes).

Our current estimations of the mutation rate of a particular strain of mytochondrial DNA may well be skewed by a previously undetected, but significantly large error in the fix rate.

Like I said, we need grants, we need new buildings, we need platoons if not divisions of grad students.

271 posted on 11/26/2008 11:00:48 AM PST by muawiyah
[ Post Reply | Private Reply | To 268 | View Replies]

To: Ignatz
Directed mutation has always been part of the game. Unfortunately until recent times folks simply had no idea of how small a really powerful computer could be. Now that we've found a second "fix DNA" protein, seems to me it's time to figure out where the computer is that directs the protein to "fix DNA" errors.

Maybe we can figure out how to communicate with "it".

272 posted on 11/26/2008 11:05:03 AM PST by muawiyah
[ Post Reply | Private Reply | To 267 | View Replies]

To: mlo
As I've already explained, I was asking you to actually prove 1 + 1 = 2

And I have done that.

Saying "we can't know" to an *unknowable* question isn't throwing up your hands. It's being honest and rational. That's all I'm trying to get across.

And how does one determine something is unknowable without trying? Those "made up" answers are nonetheless answers to the question posed. And "by definition" those "unknowable" things are called beliefs. Our Declaration of Independence includes some of those beliefs. "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness...."

273 posted on 11/26/2008 11:15:58 AM PST by AndrewC
[ Post Reply | Private Reply | To 269 | View Replies]

To: js1138

The “sudden jumps” you have in mind involve millions of years or hundreds of thousands of generations. The varity of morphology seen in dogs bred over the last thousand years is greater than the “gaps” in the fossil record for most lineages.


I’m explaining to a creationist why the creationist opposition to common descent may need to be abandoned regardless of how quickly the ‘jumps’ appear in the fossil record. And noting that this type of scientific discovery provides challenges for the creationist position.


274 posted on 11/26/2008 11:18:37 AM PST by Rippin
[ Post Reply | Private Reply | To 233 | View Replies]

To: Diplomat
"The competition to reproduce" is what GUIDES evolution? So the "competition to reproduce" is a force of some kind that is capable of ADDING complexity to living organisms and their sub-systems? "Competition to reproduce" is the guiding (intellegent) force behind evolution? Prove it."

I said neither that competition is a "force" or that it is intelligent. You are making unfounded assumptions.

Is the non-force, non-intelligent, process of natural selection capable of leading to additional complexity? Absolutely.

275 posted on 11/26/2008 11:20:27 AM PST by mlo
[ Post Reply | Private Reply | To 270 | View Replies]

To: AndrewC
Sorry, this was a typo.

"As I've already explained, I was asking you to actually prove 1 + 1 = 2. "

It should have read, "As I've already explained, I WASN'T asking you to actually prove 1 + 1 = 2."

276 posted on 11/26/2008 11:32:10 AM PST by mlo
[ Post Reply | Private Reply | To 273 | View Replies]

To: AndrewC
"And how does one determine something is unknowable without trying?"

By understanding the question.

If everything we can observe is causally related to the origin of the universe, but no information exists to be observed that can tell us what predates the singularity, if those things are true, then what happened before the singularity is unknowable.

If it is unknowable, that doesn't mean you get to insert your own favorite story in its place. It means you can't know.

Beliefs are not the same thing as knowledge. People have many beliefs. Some are quite absurd. Belief doesn't make them true.

277 posted on 11/26/2008 11:38:29 AM PST by mlo
[ Post Reply | Private Reply | To 273 | View Replies]

To: Diplomat
"Final question: Is SETI science?"

I'm not sure what SETI has to do with any of this, but, part of science is gathering data. Making observations. SETI does that. So it is a scientific endeavor, yes.

SETI is the attempt to detect signals that may originate with alien civilizations. It makes observations and gathers data that may or may not lead to new discoveries. What's not scientific about that?

278 posted on 11/26/2008 11:43:00 AM PST by mlo
[ Post Reply | Private Reply | To 270 | View Replies]

To: mlo
If everything we can observe is causally related to the origin of the universe, but no information exists to be observed that can tell us what predates the singularity, if those things are true, then what happened before the singularity is unknowable.

Your statement starts out with an "if". That is the nub.

279 posted on 11/26/2008 11:45:02 AM PST by AndrewC
[ Post Reply | Private Reply | To 277 | View Replies]

To: mlo
If everything we can observe is causally related to the origin of the universe, but no information exists to be observed that can tell us what predates the singularity, if those things are true, then what happened before the singularity is unknowable.

Your statement starts out with an "if". That is the nub.

280 posted on 11/26/2008 11:45:04 AM PST by AndrewC
[ Post Reply | Private Reply | To 277 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-20 ... 241-260261-280281-300 ... 361-365 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

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