I have been reading chapter 3 of Darwin in the Genome.
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EvC Forum: Darwin in the Genome -->
EvC Forum: Darwin in the Genome
and am wondering about the following ......
Becauase of the degeneracy of the genetic code , there are nearly 200 DNA sequences that could have been used to encode the the five amino acids EGIAK . But the 15 DNA letters that encode EGIAK in the repeated patch of the spirochete coat are always part of an identical sequence of 17 letters TGAGGGGGCTATTAAGG, that is found on both sides of the repeat and in all samples of sirochete DNA tested. We never see TGAAGGAGCTATAAAAG TGAGGGCGCCATCAAGG or any of the nearly 200 other ways to encode the very same amino acids.
If these really are synonymous codons, why is it that time after time, spirochete after spirochete, it is always the same TGAGGGGGCTATTAAGG? The other 192 synonyms for EGIAK are not acting as synonyms should.
You and I could make a plan: If you say "I'll call you tonight, it means you'll call me at 8p.m. but if you say "I'll phoneyou tonight.",it means you'll call me at 9 P.M. with two different ways of saying the same thing we can cretae another code tha sends more information underneath the message
Darwin in the Genome p.33
How much is known about this kind of thing?
Might it be relevant to creo/evo in view of the fact that common sequences are part of the argument in favor of common descent? particulary that common
synonomous sequences are one of the really difficult things for creo s to explain.
I mean if there is a hidden message under sequences which code for the same proteins then they are'nt really equal are they.
cleaned up some formatting, large amounts of bold print make a post hard to read. May I suggest using the quote tags instead? - The Queen
[This message has been edited by judge, 11-27-2003]
[This message has been edited by AdminAsgara, 11-27-2003]