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Author Topic:   Can random mutations cause an increase in information in the genome?
Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 24 of 310 (286432)
02-14-2006 11:18 AM
Reply to: Message 17 by Garrett
02-14-2006 10:52 AM


Garrett writes:
Here's the definition on wikipedia:
Macroevolution refers to evolution that occurs above the level of species. In contrast, microevolution refers to smaller evolutionary changes (generally described as changes in genotype frequencies) in populations.
This is a definition of "macroevolution," not a definition of the "macro level" term that was brought up.
Garrett writes:
No, doing something you did before isn't an increase in information....usually just the opposite. Take Darwin's famous beetles as an example. He viewed the mutation that led to a loss of wings as advantageous, which it was, because they weren't swept off the tiny island into the ocean. In reality, they had a mutation which resulted in corruption of information in their DNA, which led to a loss of the ability to create wings. Degraded information led to an advantage. This is moving in the opposite direction of evolution.
Incorrect. Evolution does not have a set direction. Loss of features through mutation and natural selection is an example of evolution.
This message has been edited by Belfry, 02-14-2006 11:19 AM

This message is a reply to:
 Message 17 by Garrett, posted 02-14-2006 10:52 AM Garrett has replied

Replies to this message:
 Message 30 by Garrett, posted 02-14-2006 11:52 AM Belfry has replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 35 of 310 (286457)
02-14-2006 12:07 PM
Reply to: Message 30 by Garrett
02-14-2006 11:52 AM


Garett writes:
I'd say macro-level is refering to those activities occurring at the level of macroevolution. ;-)
Okay, so referring back to the original quote:
quote:
There is no evidence for beneficial mutations at the level of macroevolution
Since you have defined macroevolution as moving beyond the species level, that would indicate that speciation would involve beneficial mutations at the macroevolution level. Genetic changes leading to speciation have been observed in many organisms both in both wild and laboratory popuations. So, I'd say this is falsified.
Garrett writes:
You do agree that DNA contains the genetic instructions needed for the biological development of all cellular forms of life, right?
All known forms, yes.
Garrett writes:
If you simply define evolution as change, then the loss of information needed to build a certain feature surely is evolution. The problem is that is not an intellectually honest definition of evolution.
Show us how it is dishonest.
Garrett writes:
Unless the instructions were present in the first simple celled organism that were needed for the biological development of all life forms to come, then extra info would be needed along the way.
Precisely - extra genetic information would need to be gained along the way. By extra "genetic information," I mean new genes and new alleles. This kind of addition is commonly observable, as others have pointed out.
Garrett writes:
Are you suggesting that all of the instructions were there from the beginning?
Of course not. I'm saying that extra genetic information was gained along the way. That's an aspect of evolution, but not its totality. A loss of genetic information, promoted through a population by natural selection, is also evolution.

This message is a reply to:
 Message 30 by Garrett, posted 02-14-2006 11:52 AM Garrett has replied

Replies to this message:
 Message 39 by Garrett, posted 02-14-2006 12:13 PM Belfry has replied
 Message 40 by randman, posted 02-14-2006 12:16 PM Belfry has replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 43 of 310 (286468)
02-14-2006 12:24 PM
Reply to: Message 39 by Garrett
02-14-2006 12:13 PM


Garrett writes:
I think you misread...the definition of macroevolution is changes ABOVE the level of species. Speciation would fall into the category of microevolution which I wouldn't dispute. As you say...it's observable science. I'm a fan of science that is repeatable...call me a nut.
The problem may be that you're not familiar with the terminology. Let's review your quote from wikipedia:
quote:
Macroevolution refers to evolution that occurs above the level of species. In contrast, microevolution refers to smaller evolutionary changes (generally described as changes in genotype frequencies) in populations.
In biology, "population" referrs to a group of organisms of a given species. Speciation is the origin of a new species. To continue from your own wikipedia source:
quote:
Thus the process of speciation is the link between macroevolution and microevolution, and it can fall within the perview of either.
You see, among biologists the difference between "micro" and "macro" evolution is essential one of scale, rather than function or mechanism.
This message has been edited by Belfry, 02-14-2006 12:24 PM

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 Message 39 by Garrett, posted 02-14-2006 12:13 PM Garrett has not replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 45 of 310 (286472)
02-14-2006 12:35 PM
Reply to: Message 40 by randman
02-14-2006 12:16 PM


New genes and alleles
randman writes:
It's still not clear to me how all that information is gained along the way. I get the idea that distorting existing information can create a new design, but at the same time, do we see the creation of whole new genes or whatever due to mutations?
Genetics is not an area I have studied, but when I read the comments by evos in this area, it seems like they are dodging a little the main concept here, and resort to semantic arguments, as usual.
Semantics are important when a key concept under discussion remains poorly defined.
I'm not a geneticist either, and I hope one of the molecular folks will jump in here. Mechanisms for new genes (such as duplication followed by divergence) were referred to in Message 8 and Message 21. The best I can do offhand is refer you to these examples (if you don't like TO, you are welcome to look up the cited references): CB101.2: Mutations and new features.

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 Message 40 by randman, posted 02-14-2006 12:16 PM randman has not replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 274 of 310 (287831)
02-17-2006 6:19 PM
Reply to: Message 272 by randman
02-17-2006 6:03 PM


Re: evolution science vs randman's nefarious world of evos
But randman, the randomness of mutation isn't an especially important concept in evolution. We're not holding it up as any sort of evidence for or against evolution. If it does not meet the criteria of a given definition of randomness, what does that mean? Not much, except that mutation isn't random. Not particularly exciting or revolutionary.

This message is a reply to:
 Message 272 by randman, posted 02-17-2006 6:03 PM randman has replied

Replies to this message:
 Message 275 by randman, posted 02-17-2006 6:24 PM Belfry has replied
 Message 277 by randman, posted 02-17-2006 7:04 PM Belfry has replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 276 of 310 (287866)
02-17-2006 7:01 PM
Reply to: Message 275 by randman
02-17-2006 6:24 PM


Re: evolution science vs randman's nefarious world of evos
randman writes:
Really? I would say that it is at the very heart of evolutionist thinking. If mutations are guided, then that changes the whole significance of evolutionary theory and mechanisms.
So that's the definition you're using? That random means "unguided?"
Well that settles the definition issue. If we can gain any evidence that it is guided, we can work from there. So far, we don't have any.
This message has been edited by Belfry, 02-17-2006 07:01 PM

This message is a reply to:
 Message 275 by randman, posted 02-17-2006 6:24 PM randman has not replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 278 of 310 (287878)
02-17-2006 7:20 PM
Reply to: Message 277 by randman
02-17-2006 7:04 PM


Re: evolution science vs randman's nefarious world of evos
random writes:
The degree of non-randomness determines the degree potentially of ID, if you look at it one way. So if you think Intelligent Design is OK, then I guess it's not as critical. If you are hostile towards ID, then it is very critical.
"Hostile towards ID" is not a scientific position, it is a personal one. The reason that most of us are opposed to teaching ID as science is that there is no evidence for it nor any way of falsifying it, and thus it does not qualify as a scientific theory.

This message is a reply to:
 Message 277 by randman, posted 02-17-2006 7:04 PM randman has replied

Replies to this message:
 Message 279 by randman, posted 02-17-2006 7:22 PM Belfry has replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 280 of 310 (287884)
02-17-2006 7:29 PM
Reply to: Message 279 by randman
02-17-2006 7:22 PM


Re: evolution science vs randman's nefarious world of evos
I begin to fear the wrath of the admins - there are countless ways that many aspects of the TofE could be falsified, but haven't been. But I think it should go into its own thread, and I don't have the time to devote to it tonight. If you would like to start one, I will join in as time permits.

This message is a reply to:
 Message 279 by randman, posted 02-17-2006 7:22 PM randman has not replied

Replies to this message:
 Message 281 by AdminNosy, posted 02-17-2006 7:59 PM Belfry has not replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 288 of 310 (288213)
02-18-2006 7:39 PM
Reply to: Message 287 by randman
02-18-2006 7:27 PM


Re: Definition of terms does matter
randman writes:
However, this really subtly moves evolutionary theory more into the ID camp, or theistic evo camp, as it shows that whatever formed the rules indirectly at the least plays a determining role in the formation and development of life and the information for that life on earth.
Precisely! And this is exactly why I still hold that theistic evolution is a reasonable position for those who wish to reconcile their religious devotion with the scientific evidence.
...even though I am not such a person.

This message is a reply to:
 Message 287 by randman, posted 02-18-2006 7:27 PM randman has replied

Replies to this message:
 Message 289 by randman, posted 02-18-2006 7:45 PM Belfry has not replied
 Message 290 by robinrohan, posted 02-18-2006 7:52 PM Belfry has replied

Belfry
Member (Idle past 5106 days)
Posts: 177
From: Ocala, FL
Joined: 11-05-2005


Message 292 of 310 (288308)
02-19-2006 6:24 AM
Reply to: Message 290 by robinrohan
02-18-2006 7:52 PM


Re: Definition of terms does matter
robinrohan writes:
There's nothing at all reasonable about theistic evolution--positing, as it does, a cruel god.
There is much in Scripture that suggests the Abrahamic God is certainly capable of cruelty and indifference on earth. However, it's not a topic for the Science forums.

This message is a reply to:
 Message 290 by robinrohan, posted 02-18-2006 7:52 PM robinrohan has not replied

Replies to this message:
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