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Re: Evolution

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Posted by Greg Armel/">Greg Armel on November 10, 1999 21:00:14 UTC

bzrd here: So you are saying somewhere in our genome is the information for producing chlorophyll? The problem with your theory is that there is not a known point mutation that results in an increase in information. Most, if not all, mutations result in a fatal phenotypic expression, or at best, a neutral expression in the phenotype. Thus, over time, one expects to see a down-hill effect on the genome, in terms of information content. This is consistent with the 2nd Law of Thermodynamics with regard to information systems. An analogy would be if you photo-copied the works of Shakespeare millions of times; the probability that "nonsense" would creep into the document far out-weighs the probability of improvements in the work. In real-life, it is a well-known fact that artificial selection takes information OUT of a genome to produce an individual that is bred for a particular purpose [ex. dairy cattle]. Not surprisingly, these animals are less fit to survive under natural conditions when they have to compete vs. their more genetically fit counter-parts. Also, I read where there is evidence that "modern man" and Neanderthal co-mingled; this would seem to present a problem for theory that they were kicked-out of our "familily tree".

Greg: So why do we possess the Same chromosomes, despite the problems you perceive? And Its not my theory, its Darwin's, science has just come to appreciate it at the genetic level.

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