[__ Science __ ] Richard Lenski, E. coli, and the Long-Term Evolution Experiment (LTEE)

[AIG.com]

Did a bacteria colony just prove gain-of-function mutations exist?

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[Barbarian]

Evolution only sometimes results in a gain of function. Sometimes, as in humans, there is a loss of function. The evolution of the E. coli was evolution because it fits the scientific definition. If they had lost a function, that would have been evolution, too.

And you don't need a biology degree to understand that. Or you shouldn't.