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  Topic: Uncommonly Dense Thread 4, Fostering a Greater Understanding of IDC< Next Oldest | Next Newest >  

Posts: 4999
Joined: July 2006

(Permalink) Posted: Oct. 03 2012,05:13   


blah blah blah everything is impossible.

In a new paper, the same lab tackles forming the simple, two- and three-atom sugars used in their earlier work (glycolaldehyde and glyceraldehyde). To get there, they started with nothing more complex than hydrogen cyanide, a simple molecule comprised of one atom each of hydrogen, carbon, and nitrogen. Hydrogen cyanide forms readily under a variety of conditions, and has been found on several bodies in our Solar System, as well as in the interstellar medium.

The authors were intrigued by reports in the literature of a cycle that involves a set of six cyanide molecules, coordinated by two copper atoms. In a water solution, this complex can cycle, driven by ultraviolet light, through a set of reactions that alternately spit out cyanide, protons, and electrons. These electrons get temporarily attached to water molecules, and typically end up being taken up by a scavenger molecule, typically nitrate. However, some reports in the literature noted that, when nitrate isn't added to the reaction, some undefined larger molecules formed.

The authors went back and checked these reaction products, and found that they included both glycolaldehyde and glyceraldehyde—the two chemicals that were key building blocks of the reaction that produced the RNA precursor. And all the reaction required was copper ions and some UV light.

If left to continue cycling, the products of the reaction also included some more complex, five-atom ringed structures that incorporate nitrogen and oxygen in the ring. But the authors suspect that with the right conditions—namely the ones identified in the earlier paper—the products of this new cycle could be sent directly on to form cytosine. They also suggest the addition of other metals could shift the products to additional chemicals that may have biological relevance.

I also mentioned that He'd have to give me a thorough explanation as to *why* I must "eat human babies".

if there are even critical flaws in Gauger’s work, the evo mat narrative cannot stand
Gordon Mullings

  10669 replies since Aug. 31 2011,21:06 < Next Oldest | Next Newest >  

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