Posted: Aug 02, 2018 6:41 pm
newolder wrote:DavidMcC wrote:
Here's the original discussion (on this site, at least) on the role of the RPE layer in maintaining vision:
http://www.rationalskepticism.org/post2241519.html?hilit=RPE#p2241465Defending Richard Dawkins from Misguided Criticism
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That link takes me to a discussion between yourself and various others that does not summarise how auto-cannibalism is a key to understanding the longevity of the surface vertebrate eye. The "key" point missing from the diagram you posted earlier is that opsin growth occurs at one end of the pathway that balances the bits that get chewed off at the other.
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You obviously didn't read down far enough, then. Try this:
http://www.rationalskepticism.org/post2241519.html?hilit=RPE#p2241559