fnxtr
Posts: 3504 Joined: June 2006
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Quote (GaryGaulin @ Nov. 26 2012,15:13) | Quote (fnxtr @ Nov. 26 2012,09:24) | Quote (GaryGaulin @ Nov. 26 2012,06:20) | Quote (blipey @ Nov. 26 2012,01:37) | Are you saying that bacteria self-modify? It really seems like this is what you are saying? Is it? Bacteria modify their own genes? Please try to keep your answer under 17,000 words and no music links. |
As long as "self-modify" is not loaded with anthropomorphic and/or religious meaning and is kept scientific as in the phrase "gene modification" then yes, bacteria can (self-)modify their own genes. There is no scientific controversy over that being true. |
So are you saying that bacteria choose to modify their genes?* |
Quote | The cellular intelligence of a bacterium no more chooses to modify their genes than you choose to digest your food after eating. It just happens. |
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So I'll take that as a "No, bacteria do not choose to modify their genes."
Why then do you use the active voice, as in "Bacteria can (self-)modify their genes."? If it's not a choice, why introduce "intelligence"?
Quote | At the molecular intelligence level of a bacterium (a genome) it is the same as saying that a somatic cell can choose to modify their genes through somatic hypermutation.
Quote (fnxtr @ Nov. 26 2012,09:24) | That nylonase was a deliberated response to exposure to nylon, and not just an advantageous variation that resulted in differential reproductive success? |
Since "deliberated" can be used as a loaded word indicating "God did it" you will have to rephrase the question before I can answer that. |
By the bacterium. What else?
Quote | Quote (fnxtr @ Nov. 26 2012,09:24) | Or do you consider random variation part of your "molecular/cellular intelligence" paradigm? |
The phrase "random variation" does not apply to this cognitive theory, therefore it is never used. It is a generalization which encourages sloppy science whereby you still feel intellectually fulfilled even though you did not explain a damn thing about how said "variation" occurred or why. |
Imperfect replication, leading to differential survival rates. Nature is sloppy (which is, I think, what really sticks your craw). "Random" in this sense is only in respect to survival advantage, not "equally likely in all alleles and at all points on the chromosome".
If you disagree, if you think variation is somehow guided, or a strategic reaction to increase survival advantage in a changed environment, how do you think variation happens? Be specific. How would we test this notion?
How did the presence of nylon generate nylonase-producing bacteria? How did the presence of malaria generate the sickle-cell mutation? Be specific.
What about all the "bad" mutations, like Complete Androgen Insensitivity Syndrome, or Tay-Sachs, or Down's Syndrome? Where's the "intelligence" in those?
Thank you.
-------------- "[A] book said there were 5 trillion witnesses. Who am I supposed to believe, 5 trillion witnesses or you? That shit's, like, ironclad. " -- stevestory
"Wow, you must be retarded. I said that CO2 does not trap heat. If it did then it would not cool down at night." Joe G
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