B
buffalo
Guest
Posters interested should look at Facilitated VariationThank you, buffalo. I think there are some here that don’t believe in God that are honestly searching for the truth, while, sadly, there are some who appear to present this theory as carved in stone and we must accept it. That is illogical as your example shows. And it is illogical in the sense that new discoveries are constantly being made, like your example above. It is only an assumption that science is only strengthening this theory. The exact opposite appears to be occurring.
Here’s a great example of something scientists say was conserved - for no particular reason - for 400 million years. This, in my view, is a serious blow to previous claims that things like digits in animals came about through gradual processes and novel pathways that required all that time. It strongly suggests that all the information was front-loaded in the beginning and only required certain switches to activate at certain times.
sciencedaily.com/releases/2011/07/110711151453.htm
Peace,
Ed
This theory concerns the means by which animals generate phenotypic variation from genetic change. Most anatomical and physiological traits that have evolved since the Cambrian are, we propose, the result of regulatory changes in the usage of various members of a large set of conserved core components that function in development and physiology. Genetic change of the DNA sequences for regulatory elements of DNA, RNAs, and proteins leads to heritable regulatory change, which specifies new combinations of core components, operating in new amounts and states at new times and places in the animal. These new configurations of components comprise new traits. The number and kinds of regulatory changes needed for viable phenotypic variation are determined by the properties of the developmental and physiological processes in which core components serve, in particular by the processes’ modularity, robustness, adaptability, capacity to engage in weak regulatory linkage, and exploratory behavior. These properties reduce the number of regulatory changes needed to generate viable selectable phenotypic variation, increase the variety of regulatory targets, reduce the lethality of genetic change, and increase the amount of genetic variation retained by a population. By such reductions and increases, the conserved core processes facilitate the generation of phenotypic variation, which selection thereafter converts to evolutionary and genetic change in the population. Thus, we call it a theory of facilitated phenotypic variation.
Life has around 500 or so conserved “immortal” components of which just about anything can be built, it just has to be turned on in the right combinations. (programming). These were there at the beginning and passed on to offspring through the mother.