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Author Topic:   “Rapid Evolution” Method Found in Eyeless Fish
ringo
Member (Idle past 412 days)
Posts: 20940
From: frozen wasteland
Joined: 03-23-2005


Message 6 of 27 (736155)
09-04-2014 11:53 AM
Reply to: Message 1 by Bojan
09-04-2014 8:47 AM


Bojan writes:
It's just some regulatory genes switching on and off so that endangered species might change forms?
Nitpick: Evolution doesn't "know" whether a species is endangered or not. It can't anticipate that the environment will change back and forth. All it can do is react to changes after they happen. If a switching mechanism does exist, it must have evolved in the "conventional" way.

This message is a reply to:
 Message 1 by Bojan, posted 09-04-2014 8:47 AM Bojan has replied

Replies to this message:
 Message 9 by Bojan, posted 09-04-2014 12:47 PM ringo has replied

  
ringo
Member (Idle past 412 days)
Posts: 20940
From: frozen wasteland
Joined: 03-23-2005


Message 15 of 27 (736217)
09-05-2014 11:58 AM
Reply to: Message 9 by Bojan
09-04-2014 12:47 PM


Bojan writes:
If we look some examples in nature, it's obvious that changes in phenotype don't happen in a way that previous versions are "erased" in genome.
Looking at "some" examples seems to be the problem here. If some species can switch back to an earlier phenotype (or switch back and forth), we still can't conclude that all evolution works that way. It isn't enough evidence to suggest that the general blueprint is preserved in perpetuity.

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 Message 9 by Bojan, posted 09-04-2014 12:47 PM Bojan has replied

Replies to this message:
 Message 17 by Bojan, posted 09-05-2014 6:24 PM ringo has replied

  
ringo
Member (Idle past 412 days)
Posts: 20940
From: frozen wasteland
Joined: 03-23-2005


Message 18 of 27 (736294)
09-06-2014 12:24 PM
Reply to: Message 17 by Bojan
09-05-2014 6:24 PM


Bojan writes:
Since the genes from a mouse produced eyes of a fly, that shows that some basic general blueprint is preserved through vast time and many species.
I don't see how it shows any such thing. It shows that mouse genes will work in a fly - i.e. the basic mechanism of DNA is universal.
Using your blueprint analogy, the blueprint for a fly is made up of the same kinds of lines as the blueprint for a mouse - you can cut out a section of the mouse blueprint and paste it into the fly blueprint to make a Franken-fly.
You could use the same cut-and-paste technique with a fish blueprint but that says nothing about the natural evolution of a fish.

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 Message 17 by Bojan, posted 09-05-2014 6:24 PM Bojan has not replied

  
ringo
Member (Idle past 412 days)
Posts: 20940
From: frozen wasteland
Joined: 03-23-2005


Message 27 of 27 (736811)
09-13-2014 2:14 PM
Reply to: Message 25 by mike the wiz
09-13-2014 5:41 AM


Re: So this proves you can lose eyes, not evolve them?
mike the wiz writes:
So when you said, "rapid evolution" I expected something that would impress me....
No you didn't. You work very hard at being unimpressed by what impresses every biologist in the world.

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 Message 25 by mike the wiz, posted 09-13-2014 5:41 AM mike the wiz has not replied

  
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