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Science 298 (5594): 763-764

Copyright © 2002 by the American Association for the Advancement of Science

SYSTEMS BIOLOGY:
Life's Complexity Pyramid

Zoltán N. Oltvai and Albert-László Barabási

How are the myriad components inside the cell connected together, enabling the cell to carry out its specific functions? In their Perspective, Oltvai and Barabási discuss two new studies (Lee et al., Milo et al.) that investigate both biological networks of intracellular components and nonbiological networks such as the World Wide Web. They explain that all networks seem to be organized according to the same distinct principles.


Z. N. Oltvai is in the Department of Pathology, Northwestern University, Chicago, IL 60611, USA. E-mail: zno008{at}nwu.edu. A.-L. Barabási is in the Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA. E-mail: alb{at}nd.edu.


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