gordonr at cc.UManitoba.CA
Fri Feb 19 17:45:24 EST 1999
>In article <7aeppq$kto at net.bio.net>,
> "SH at OLIN©" <W.J.Koning at chem.uu.nl> wrote:
>>> "What processes make DNA MORE complicated?"
I would be interested in any speculation that anyone (especially Dick and Ed)
have on what processes might be involved.
Okay, I'll try to summarize my 1800p. book in a few sentences:
1) The genetic program consists of an hierarchical alternation of physical
waves traversing portions of embryonic tissues and the gene cascades they
2) The genetic program thus may be described as a differentiation tree.
3) The differentiation tree maps onto the linear genome (the DNA).
4) Chromosome rearrangements (including sizable duplications) can sometime
produce viable organisms, still capable of finding a mate, with more
complex differentiation trees.
5) It is, perhaps for various reasons, easier (more usually viable) to
enlarge a differentiation tree than prune it.
6) Some differentiation tree lineages therefore have more and more complex
differentiuation trees = progressive evolution. QED
Yours, -Dick Gordon
Dr. Richard Gordon, Radiology, U. Manitoba, HSC, 820 Sherbrook Street,
Winnipeg R3A 1R9 Canada, Phone: 204-789-3828/The Hierarchical Genome &
Differentiation Waves: Novel Unification of Development, Genetics &
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