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Author Topic:   Epigenetic Factors as 'Creative' influence in Evolution
Saviourmachine
Member (Idle past 3585 days)
Posts: 113
From: Holland
Joined: 01-16-2004


Message 4 of 30 (89965)
03-03-2004 4:02 AM
Reply to: Message 3 by Parsimonious_Razor
03-03-2004 1:11 AM


I've heard about that genes can turn on in the 'right' environment, a sort of sleeping genes. But that's something different. Why should development selection reflect environment selection?

This message is a reply to:
 Message 3 by Parsimonious_Razor, posted 03-03-2004 1:11 AM Parsimonious_Razor has not replied

  
Saviourmachine
Member (Idle past 3585 days)
Posts: 113
From: Holland
Joined: 01-16-2004


Message 27 of 30 (91165)
03-08-2004 2:47 PM
Reply to: Message 25 by Parsimonious_Razor
03-05-2004 12:37 PM


Re: Bigger Picture
By the way, I'm curious about what you want to suggest. A sort of backward system involving the brain in deciding the hormone level of the cell environment and influencing the suppression of particular genetic code? I think you're right in suggesting that the coupling between information in the genetic material and in the environment is tighter than often suggested.
You seem to refer to a inheritable system that is parallel to the information (m)DNA transmits (not only to alternative/direct environment influences). That does have something to do with evo psy, I guess?

Some nizzle-dizzle (not that important):
Parsimonious Razor writes:
I am not sure I really understand your question though, how would environmental selection NOT reflect developmental selection or vice-versa?
Developmental selection is a part of environmental selection. So, the question is (and only is) 'versa': how would developmental selection NOT reflect environmental selection? Because developmental selection gives rise to a lot of other restrictions, sometimes more loosely. It doesn't predict which organism will survive.
Yes, some behavior is certainly caused primarily by genetics. Others are caused by a mixture between genetic and environmental factors. This is probably the vast majority of behavior.
Cognition processes are caused by a mixture between genetic and environmental factors? I think the part of genetics is only important in regard to brain development.
I forgot to add (and couldn't resist) that human pathologies could also be caused by demonic possession, but these are easily cured by consuming mass quantities of beans.
Do you know a serious study about that?

This message is a reply to:
 Message 25 by Parsimonious_Razor, posted 03-05-2004 12:37 PM Parsimonious_Razor has not replied

Replies to this message:
 Message 28 by Mammuthus, posted 03-11-2004 3:15 AM Saviourmachine has replied

  
Saviourmachine
Member (Idle past 3585 days)
Posts: 113
From: Holland
Joined: 01-16-2004


Message 30 of 30 (93487)
03-20-2004 7:29 AM
Reply to: Message 28 by Mammuthus
03-11-2004 3:15 AM


Re: Bigger Picture
Of course you're right, the result of brain development can lead to cognitive abilities, but the cognitive processes itself aren't caused by genetic factors. That's only building the system (which can be delayed). It's a interesting question how much of the systems are predesigned by evolution. For example, do we possess a 'language organ' (Chomsky)?

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 Message 28 by Mammuthus, posted 03-11-2004 3:15 AM Mammuthus has not replied

  
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