Re: Is evolution really the central theory for all of biology?

From: Bill Hamilton <williamehamiltonjr@yahoo.com>
Date: Wed Sep 21 2005 - 12:37:35 EDT

David C Campbell <amblema@bama.ua.edu> wrote:

DNA adds another source of convergence. In addition to the good
possibility that a similar DNA sequence will be useful to different
organisms with similar niches, there is the 1/4 chance of random
similarity between two DNA strands (because A, C, G, and T are your
only options, unless you count insertions/deletions as a fifth option).

WEH: If you have two DNA chains with a single codon, the chance of them being the same is 1/4. For two codons it is 1/16. For n codons it is 1/4^n.

----------------------------------------
Dr. David Campbell
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A. Milne

Bill Hamilton
William E. Hamilton, Jr., Ph.D.
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Received on Wed Sep 21 12:39:44 2005

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