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  Topic: Help required!, Another evo discussion.< Next Oldest | Next Newest >  
C.J.O'Brien



Posts: 395
Joined: Aug. 2005

(Permalink) Posted: Jan. 11 2008,14:32   

Quote
Whether or not the mutation has a direct impact upon the fitness of future generations or has more indirect result is probably up for grabs and maybe both depending upon the situation.  To constantly claim that mutations occur with no apparent relation to fitness is only reality in a test tube, and probably not even there either.

Well skeppy, there are many more ways to miss a point than to get it, and, in this case, you seem determined to try out every last one.
No one is asserting that "mutation[s have no] direct impact on...fitness..." What we are saying, in small words whenever possible, is that the occurance of a mutation happens without regard to fitness. That is, nobody has succeeded in bringing light to a mechanism whereby "directed mutation" or "frontloading" would be a live possibility. As far as any investigator can tell, mutations just happen, willy-nilly, and pass into the great filter of natural selection. Conserved regions are regions where mutations do not get passed on, not regions where they never occur in the first place. This is clearly on the selection side of things.

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The is the beauty of being me- anything that any man does I can understand.
--Joe G

  
  77 replies since Dec. 08 2007,11:59 < Next Oldest | Next Newest >  

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