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Nature Reviews Genetics 10, 816–817 (1 December 2009) | doi:10.1038/nrg2709

Development: Size control by divide and rule

Mary Muers

Size can be controlled at many levels, including the size a cell attains before it divides and the number of cells that form a complete organ. Therefore, as shown by two recent papers, lessons about growth regulation can be learnt both from studies of intrinsic cellular mechanisms and from studies of groups of cells growing together.