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Author Topic:   Information for MPW
Taqless
Member (Idle past 5943 days)
Posts: 285
From: AZ
Joined: 12-18-2003


Message 4 of 27 (82257)
02-02-2004 6:10 PM
Reply to: Message 2 by Percy
02-02-2004 4:40 PM


Re: Does Natural Selection Increase Information?
Hiya Percy and :ae:,
I'm going to jump in here and ask:
The total information in the population for this gene can only change if the number of alleles increases or decreases....The selection by any individual reproductive act of one particular allele neither increases nor decreases the number of alleles in the population.
Are you referring to chromosome counts as information? OR
An increase can only happen through mutation....
Gain/Loss of proteins as information?
For me, it is an important distinction. I'll hold comment until I make sure I understand what is being defined as an increase/decrease in information.
Damn, took too long.
[This message has been edited by Taqless, 02-02-2004]

This message is a reply to:
 Message 2 by Percy, posted 02-02-2004 4:40 PM Percy has replied

Replies to this message:
 Message 7 by Percy, posted 02-02-2004 6:45 PM Taqless has replied

  
Taqless
Member (Idle past 5943 days)
Posts: 285
From: AZ
Joined: 12-18-2003


Message 6 of 27 (82272)
02-02-2004 6:43 PM
Reply to: Message 3 by :æ:
02-02-2004 5:36 PM


Re: Does Natural Selection Increase Information?
It is hypothetically possible to have X number of alleles, pass them all along (i.e. do not select for any) and then add, say, 2 mutations to that set of alleles, and the result would be a information decrease. It seems that in reality, though, that selection acts much faster than mutation does (i.e. most mutations are disadvantageous and are generally deselected) and consequently information increases over time.
However, without mutation what exactly are you "selecting" for? This is an area I'm very interested in, but quite the "newbie". I understand that the more alleles one has the more importance/information if one is selected, but I am, initially, disagreeing with the selection w/o mutation...probably because I am not understanding what you've said very well.

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 Message 3 by :æ:, posted 02-02-2004 5:36 PM :æ: has not replied

  
Taqless
Member (Idle past 5943 days)
Posts: 285
From: AZ
Joined: 12-18-2003


Message 8 of 27 (82287)
02-02-2004 7:11 PM
Reply to: Message 5 by Percy
02-02-2004 6:41 PM


Re: Does Natural Selection Increase Information?
Percy,
I'll just come out with it and say the following:
1 gene = 1 protein = 1 function = not true.
So, to strictly look at the bases of DNA and say "this is all we're working with in the population" is faulty. This is something that is becoming more problematic when those of us involved in functional genomics attempt to review, read, or rationalize in the context of evolution. Because alleles have become much more complex than can be imagined. Used to be simply haplotypes. Your house and mine do not look alike on the inside just because they both have four walls and a roof.
As a side note: For those that would interpret this as a problem inherent with evolution that is not what I am saying.

This message is a reply to:
 Message 5 by Percy, posted 02-02-2004 6:41 PM Percy has replied

Replies to this message:
 Message 9 by Percy, posted 02-02-2004 9:16 PM Taqless has replied

  
Taqless
Member (Idle past 5943 days)
Posts: 285
From: AZ
Joined: 12-18-2003


Message 10 of 27 (82377)
02-02-2004 10:06 PM
Reply to: Message 7 by Percy
02-02-2004 6:45 PM


Re: Does Natural Selection Increase Information?
Percy,
Aaaah, there it is the light. It finally registered in my overworked (woe to me) brain. Sorry about that.

This message is a reply to:
 Message 7 by Percy, posted 02-02-2004 6:45 PM Percy has not replied

  
Taqless
Member (Idle past 5943 days)
Posts: 285
From: AZ
Joined: 12-18-2003


Message 11 of 27 (82378)
02-02-2004 10:08 PM
Reply to: Message 9 by Percy
02-02-2004 9:16 PM


Re: Does Natural Selection Increase Information?
My most humble of apologies. Too quick on the draw

This message is a reply to:
 Message 9 by Percy, posted 02-02-2004 9:16 PM Percy has not replied

  
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