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Science 8 December 2006:
Vol. 314. no. 5805, pp. 1558 - 1559
DOI: 10.1126/science.1137541
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Essays on Science and Society

GE PRIZE-WINNING ESSAY:
The Emergence of Cells During the Origin of Life

Irene A. Chen

In simple protocells, formed by encapsulating RNA inside vesicles, interactions between the RNA and the membrane lead to the emergence of essential cellular behaviors.

The author is in the Division of Health Sciences and Technology at Harvard Medical School and the Massachusetts Institute of Technology, Boston, MA 02115, USA. E-mail: ichen{at}post.harvard.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)