Flexible gene expression may regulate social status in male fish

ScienceDaily: For a small African fish species, a colorful dominant male does better in life, winning access to food and females. New research by Stanford biologists suggests that this lucky outcome is regulated at a genetic level, by turning genes on and off. People generally think that our genetic code, and thus the expression patterns of our genes, is fixed throughout life. Indeed, this is true in some cases such as eye color, a characteristic that is determined by gene expression early in development. However,......

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