Racial differences in breast cancer patterns.

www.sciencemag.org SCIENCE VOL 329 2 JULY 2010 5 COVER Electron micrograph of Mycoplasma mycoides JCVI-syn1.0 cells (magnifi cation ~25,000×). These cells were produced following transplantation of a 1.08–megabase pair synthetic M. mycoides genome into M. capricolum recipient cells. The cells are controlled by the synthetic genome, exhibit the expected phenotypic properties, and are capable of self-replication, thus providing proof of principle for the production of cells from digitized sequence information. See page 52. Photo: Thomas Deerinck and Mark Ellisman, National Center for Microscopy and Imaging Research, University of California at San Diego DEPARTMENTS 10 This Week in Science 14 Editors’ Choice 16 Science Staff 17 Random Samples 97 New Products 98 Science Careers page 24 EDITORIAL 13 Science Attachés in Embassies Farouk El-Baz