Convoluted human evolution: Speedy HARs (Introduction)

by David Turell @, Friday, August 19, 2016, 20:28 (1003 days ago) @ dhw

DAVID: The Scientist website has published a diagram showing how small differences in HARs between human and chimp to achieve the evolutionary changes. Please look at the site to see it:

DAVID'S comment: Just slight tweaking. It shows why the genome of humans and chimps is 98% the same when looked at without regard for tiny differences like these.

dhw: Unfortunately, I can't get onto this site. It seems to jam my computer. However, your comment is enlightening in itself. It only takes a tiny tweak to create the great gulf between chimps and humans.

That is unfortunate. In the two HAR's shown in the diagram comparing chimp to human, one HAR had six bases changed out of 137, the other seven bases

dhw: “A slight tweaking”, and “it may have been a simple matter”. Perhaps, then, we should stop harping on about the enormous complexity of the required changes, as if it is beyond the scope of the cell communities themselves to make these tweaks and shifts.

You miss an entire point: we see a code change, and its effects, but have no idea how the code change exerts its effects. We are missing a whole layer or mechanism of the process!

DAVID's comment: Common descent is hard to deny with a study like this. God tunes the dial.

dhw: Maybe (theistic version) God created the dial, and left it to the organisms themselves to do the tuning.

If He gave them enough guidance.

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