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11-14-2008, 05:57 AM
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 #1 |
| Blinding you with science Join Date: Sep 2007
Posts: 2,113
 | Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machines Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machines A team of Princeton University scientists has discovered that chains of proteins found in most living organisms act like adaptive machines, possessing the ability to control their own evolution. The research, which appears to offer evidence of a hidden mechanism guiding the way biological organisms respond to the forces of natural selection, provides a new perspective on evolution, the scientists said. The researchers -- Raj Chakrabarti, Herschel Rabitz, Stacey Springs and George McLendon -- made the discovery while carrying out experiments on proteins constituting the electron transport chain (ETC), a biochemical network essential for metabolism. A mathematical analysis of the experiments showed that the proteins themselves acted to correct any imbalance imposed on them through artificial mutations and restored the chain to working order. "The discovery answers an age-old question that has puzzled biologists since the time of Darwin: How can organisms be so exquisitely complex, if evolution is completely random, operating like a 'blind watchmaker'?" said Chakrabarti, an associate research scholar in the Department of Chemistry at Princeton. "Our new theory extends Darwin's model, demonstrating how organisms can subtly direct aspects of their own evolution to create order out of randomness."
__________________ You can’t crap all over Darwin and stem cell research and global warming, then come crawling back to science when you want Tamiflu. So if humans evolved to have bigger and better brains, why are there still creationists? |
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11-15-2008, 03:19 AM
| #2 |
| Senior Member Join Date: Oct 2008
Posts: 208
| Re: Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machine Wow! God is such an awesome architect! |
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11-15-2008, 07:11 AM
| #3 | |
| Senior Member Join Date: Sep 2007 Location: England
Posts: 1,145
| Re: Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machine Quote:
__________________ Blessed are the Fundamentalists, for they shall inhibit the earth. | |
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11-17-2008, 08:10 PM
| #4 | |
| Blinding you with science Join Date: Sep 2007
Posts: 2,113
| Re: Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machine Quote:
__________________ You can’t crap all over Darwin and stem cell research and global warming, then come crawling back to science when you want Tamiflu. So if humans evolved to have bigger and better brains, why are there still creationists? | |
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| Tags: biology, cruisecontrol, evolution, realscience |
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LinkBack to this Thread: http://www.conflictingviews.com/society/science-technology-humanities/evolutions-new-wrinkle-proteins-cruise-control-act-like-adaptive-machines-3630.html | ||||
| Posted By | For | Type | Date | |
| Evolution's New Wrinkle: Proteins With 'Cruise Control' Act Like Adaptive Machines | Polymeme | This thread | Refback | 11-18-2008 05:33 AM | |
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