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Stochasticity in gene expression: from theories to phenotypes.

Nature reviews. Genetics

Stochastic Processes, Bacteria, genetics, Eukaryotic Cells, metabolism, Gene Expression, physiology, Gene Expression Regulation, Phenotype, Animals

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      Abstract

      Genetically identical cells exposed to the same environmental conditions can show significant variation in molecular content and marked differences in phenotypic characteristics. This variability is linked to stochasticity in gene expression, which is generally viewed as having detrimental effects on cellular function with potential implications for disease. However, stochasticity in gene expression can also be advantageous. It can provide the flexibility needed by cells to adapt to fluctuating environments or respond to sudden stresses, and a mechanism by which population heterogeneity can be established during cellular differentiation and development.

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      Journal
      15883588
      10.1038/nrg1615

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