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Science 5 January 2007:
Vol. 315. no. 5808, pp. 46 - 47
DOI: 10.1126/science.1137587
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Perspectives

MOLECULAR BIOLOGY:
Do Watson and Crick Motor from X to Z?

Carmen Sapienza

A protein that determines left-right body asymmetry in the mouse is involved in the nonrandom segregation of duplicated chromosomes to daughter cells.

The author is at the Fels Institute for Cancer Research and Department of Pathology, Temple University Medical School, 3307 North Broad Street, Philadelphia, PA 19140, USA. E-mail: sapienza{at}temple.edu

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