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How Does a Cell Know Its Size?

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Science  25 Nov 2011:
Vol. 334, Issue 6059, pp. 1047-1048
DOI: 10.1126/science.334.6059.1047

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Cells come in many sizes, although cells of the same type tend to be roughly the same size. Biologists have puzzled over how cells know when they've reached the right size. Researchers have finally begun to identify potential size-sensing mechanisms within cells, but they admit there's still a lot to learn.

This article is part of the Mysteries in the Cell collection.