Primordial goo  MAY 14 2009

Chemist John Sutherland has discovered a process by which ordinary chemicals could spontaneously form RNA molecules, the suspected building blocks of the first life on Earth.

Scientists have long suspected that the first forms of life carried their biological information not in DNA but in RNA, its close chemical cousin. Though DNA is better known because of its storage of genetic information, RNA performs many of the trickiest operations in living cells. RNA seems to have delegated the chore of data storage to the chemically more stable DNA eons ago. If the first forms of life were based on RNA, then the issue is to explain how the first RNA molecules were formed.

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