10-24-2005, 06:00 PM | #30 |
wat
Join Date: Jan 2005
Posts: 7,177
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Chemical messenger system, more like. We must not be agreeing. I was trying to point out it's not random, not spontaneous. We're taking about evolution, so I will say a selection pressure of some kind is occurring. The cell can make ATP, it's happy. Species that are completely adapted to their environments don't evolve further (or devolve). Maybe the cell can't make ATP as well as it used to. It is being pressured by selected factors. Maybe it's in competition with another species that is beginning to overtake it now that the environment shifted to better support that new species. This may introduce the evolutionary genes as a minor factor on the evolutionary or ecological time scale, chances are the species losing will in fact lose. Time scale is an important thing, maybe the species can just manage to scrap by, and the genes have time to tweak the genome into becoming more suited to the environment.
This is a rough example of my view about evolution at present. I don't support these evolutionary genes at all, because I haven't heard of them before, and my views do not require such genes (as far as my understanding of genetics is concerned). |
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