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Darwin's Time Machine: Scientists begin predicting evolution's next step

de up of single changes, but each change still creates a valid word. Likewise, in evolution, the series of mutations must remain viable at each stage. Hall found that the model could show along what path certain bacteria were likely to evolve to thwart antibiotics that had not yet reached the market.

"Fighting bacteria with antibiotics has always been done the same way," says Hall. "We make a drug and after a while, the bugs adapt to it, so we give them a variant of the drug. But if we can predict how they're going to get around our treatments, we can work out a way to make that route impossible for them. We can cut them off at the pass."


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Contact: Jonathan Sherwood
jonathan.sherwood@rochester.edu
585-273-4726
University of Rochester
19-Mar-2002


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