Posted: Jun 26, 2010 12:26 am
by CharlieM
CharlieM:
What I'm calling unsubstantiated belief is the power of evolution by natural selection to produce anything but small changes within a limited area. What observed phenomenon did you have in mind?


Rumraket:
The fossil record, comparative anatomy, comparative genetics(the tree of life), biogeography etc. etc. etc. You going to handwave it all away with reference to the flagellar hook protein FlgE ?


CharlieM:
Let's say the flagellar proteins FlgB, FlgC, FlgE, FlgF, FlgG and FlgK are homologous and that they all developed from some unknown precursor protein. Why is this evidence that they were formed by some unguided, evolutionary mechanism? My blood cells, neurons, liver cells and skin cells all developed from a common precursor cell. Does it then follow that they were formed by some unguided developmental mechanism? Your list above is good evidence that life changes and develops over time, but it tells us nothing about the cause of the change; whether or not it was brought about by unguided accidents.