Biochemical mediation (Introduction)

by dhw, Sunday, December 15, 2013, 08:37 (3996 days ago) @ David Turell

DAVID: How epigenetic fairly rapid change can be controlled by an identified protein. this is pure biochemistry. dhw: where is the intelligent process? Came from the genome by chemistry:-"Adds Rohner: "This is the first study showing that this HSP90-mediated mechanism can be applied to vertebrates for real morphological adaptive traits."
[...] He believes this latest work should help quiet those who are skeptical of the impact of this mechanism throughout the plant and animal kingdoms.-"We now have enough evidence to say that large, rapid environmental change can reveal new variation and change the outcomes of real evolution in nature," he says.-http://www.sciencedaily.com/releases/2013/12/131212141938.htm-Of course it all happens through chemistry. When Shakespeare wrote "King Lear", there were also chemical processes at work, interconnecting the billions of cells in his brain. The question is to what extent chemical processes govern thought and vice versa. Here, the cavefish were subjected to environmental pressure: -QUOTE: Rohner notes that at some point many thousands of years ago, a population of Astyanax mexicanus (a fish indigenous to northeastern Mexico) was swept from its hospitable river home into the unfriendly confines of underwater caves. Facing a dramatically different environment, the fish were forced to adapt. Living in near total darkness, the fish did away with their pigmentation, developed heightened sensory systems to detect changes in water pressure and the presence of prey and, perhaps most strikingly, they lost their eyes-Your argument is that the adaptations were mechanical - and you would say that either your God stepped in to do a dabble, or he had preprogrammed the first cells to pass on the instructions not only for the production of Astyanax mexicanus but also for its adaptation to the new, unfriendly environment. Why is this any more convincing than the suggestion that their own (God-given?) intelligent cells took the decision to dispense with those features that were irrelevant to the new environment, and to enhance those that were useful? Of course the decision could only be implemented by biochemical means.