Saturday, April 28, 2012

 

Turing was right

"Two proteins fit decades-old prediction. Today, Alan Turing is best known as the father of modern computer science, but in 1952 he sketched out a biological model in which two chemicals — an activator and an inhibitor — could interact to form the basis for everything from the color patterns of a butterfly’s wings to the black and white stripes of a zebra". Turing was right | Harvard Gazette


Friday, April 27, 2012

 

The Geometry of Phenotype Space

"Biological systems that need to perform multiple tasks face a fundamental trade-off: A given phenotype cannot be optimal at all tasks. ere, we ask how trade-offs affect the range of phenotypes found in nature. Using the Pareto front concept from economics and engineering, we find that best-trade-off phenotypes are weighted averages of archetypes—phenotypes specialized for single tasks." Evolutionary Trade-Offs, Pareto Optimality, and the Geometry of Phenotype Space


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