News From the Field
Early Earth Cells Modeled to Show How First Life-forms Might Have Packaged RNA
October 14, 2012
A chemical model that mimics a possible step in the formation of cellular life on Earth 4-billion years ago has been developed at Penn State University. Chemists created primitive, cell-like structures that they infused with RNA--the genetic coding material that is thought to precede the appearance of DNA on Earth--and demonstrated how the molecules would react chemically under conditions that might have been present on the early Earth.
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