Preadaptations and Convergent Evolution

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Rigil Kent (February 05, 2010, 20:44:20 PM):
Quote
Interestingly, the Prestin gene is found in an organism (Trichoplax adhaerens) with no nerve cells, sensory cells or muscle cells. Trichoplax adhaerens


I agree, that is interesting. Can you please link this statement to a source? I'd like to see if the gene is expressed or not. Thanks.

Mintaka
Teleological (February 05, 2010, 20:49:07 PM):
So what is the Prestin gene doing in the genome of an organism with no hearing apparatus or nervous system and emerged long before these kinds of organisms or organs for sound wave mechanosensing?

Hey man, I'm wondering if it was not just one of those chance fluke mutation thingies. And whether this Prestin stuff doesn't just remain in this funny little organism as junk DNA, with no function yet known, or maybe with no function at all ( imagine THAT!! ).

Of course if the Great Designer had really wanted to help this Trichoplax adhaerens he might have given it some wheels or something. Wheels are really cool things, but the Great Designer didn't seem to have any use for them. Sad.

Well these guys say so....[/url]

I donno about that (sounds like the words of IDiots, but I digress),

Sure does. I will offer to give the authors a short shark kick in their card-readers for incorrectly using a word with teleological implications. Silly people, really.

The emergence of this protein form just guaranteed that echolocation was on the cards over vast evolutionary time scales even though it was present way before echolocation even played an important role in nature.

Ain't it amazing how chance mutational schitt that happens sometimes results in changes that become important for survival selection? And how said schitt ends up being of no use at all to other organisms ( such as the one you refer to wif piccies an' all )?

More exciting developments are "on the cards" in a swamp near you. ;)

( Oy vey, how I hate all this biology stuffs ).
Oh vey, another moron talking about the great designer and making philosophically vacuous arguments in the science sections.
Teleological (February 05, 2010, 20:50:09 PM):
Quote
Interestingly, the Prestin gene is found in an organism (Trichoplax adhaerens) with no nerve cells, sensory cells or muscle cells. Trichoplax adhaerens


I agree, that is interesting. Can you please link this statement to a source? I'd like to see if the gene is expressed or not. Thanks.

Mintaka
The link to the gene is provided. However further research needs to be done to determine the function of the protein in that organism and whether it is expressed or not.
rwenzori (February 05, 2010, 20:55:07 PM):
The link to the gene is provided. However further research needs to be done to determine the function of the protein in that organism.

I'll splash out and bet R1-00c it's plain junk DNA. :P
Rigil Kent (February 05, 2010, 21:06:30 PM):
Teleological, I scanned briefly through the lengthy article and could not locate the Prestin gene reference, but it is Friday and my eyes are tired :-\ - where exactly did you see that the Prestin gene is present in Trichoplax?


Mintaka

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