Living systems owe their existence to a pair of information-carrying molecules: DNA and RNA. These fundamental chemical forms possess two features essential for life: they display heredity—meaning they can encode and pass on genetic information, and they can adapt over time, through processes of Darwinian evolution.
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- What came first in the origin of life? A study contradicts the 'metabolism first' hypothesisFri, 8 Jan 2010, 10:58:18 EST
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- Unselfish molecules may have helped give birth to the genetic material of lifeMon, 8 Mar 2010, 15:34:44 EST
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