|
Register | Sign In |
|
QuickSearch
Thread ▼ Details |
|
Thread Info
|
|
|
Author | Topic: Can random mutations cause an increase in information in the genome? | |||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
Garrett writes:
This is a definition of "macroevolution," not a definition of the "macro level" term that was brought up.
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. Garrett writes:
Incorrect. Evolution does not have a set direction. Loss of features through mutation and natural selection is an example of evolution. 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. This message has been edited by Belfry, 02-14-2006 11:19 AM
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
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: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:
All known forms, yes.
You do agree that DNA contains the genetic instructions needed for the biological development of all cellular forms of life, right? Garrett writes:
Show us how it is dishonest.
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. Garrett writes:
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.
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. Garrett writes:
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.
Are you suggesting that all of the instructions were there from the beginning?
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
Garrett writes:
The problem may be that you're not familiar with the terminology. Let's review your quote from wikipedia:
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. quote: 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: 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
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
randman writes:
Semantics are important when a key concept under discussion remains poorly defined. 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.
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.
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
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.
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
randman writes:
So that's the definition you're using? That random means "unguided?" 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. 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
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
random writes:
"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.
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.
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
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.
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
randman writes:
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. 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. ...even though I am not such a person.
|
|||||||||||||||||||||||
Belfry Member (Idle past 5387 days) Posts: 177 From: Ocala, FL Joined: |
robinrohan writes:
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.
There's nothing at all reasonable about theistic evolution--positing, as it does, a cruel god.
|
|
|
Do Nothing Button
Copyright 2001-2023 by EvC Forum, All Rights Reserved
Version 4.2
Innovative software from Qwixotic © 2025