The prebiotic synthesis of pyrimidines in frozen solution

Details The prebiotic synthesis of pyrimidines in frozen solution The prebiotic synthesis of pyrimidines in frozen solution

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006nw.....93..228c&link_type=abstract

Naturwissenschaften, Volume 93, Issue 5, pp.228-231

Mathematics

Logic

3

Scientific paper

Most prebiotic syntheses depend on the reaction of concentrated precursor compounds to produce bio-organic molecules. It is now believed that the early Earth’s atmosphere was not reducing enough to have permitted copious synthesis of precursor molecules. Freezing allows reaction to occur even from dilute solution. This reaction has been demonstrated for the purines but not for the pyrimidines. It is shown here that dilute solutions of simple prebiotic molecules produce the biological pyrimidines cytosine and uracil upon freezing. Cold environments may have allowed synthesis of all of the RNA bases even from low organic yielding atmospheres, such as those of the early Earth, Mars, Titan and Europa.

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