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. Author manuscript; available in PMC: 2013 Dec 1.
Published in final edited form as: Phys Biol. 2012 Nov 29;9(6):065006. doi: 10.1088/1478-3975/9/6/065006

Figure 5.

Figure 5

Stochastic fluctuations can be integrated at various scales. (a) Some fluctuations in the abundances of some molecules may be localized to individual cells. These fluctuations are cell-intrinsic. (b) Local signaling may propagate the effects of fluctuations in molecular levels in small clusters of cells. (c) A phenotypic fluctuation originating in a single cell may cause fluctuations in the phenotypes of other cells in the tissue at large. Molecular signals may be relayed by non-motile cells, as well as be carried to distant sites by motile cells.