When timing is everything: Research says beneficial mutations need specific circumstances to win out
from Medical Xpress
When it comes to the sort of beneficial mutations that drive natural selection, there's new evidence that, evolutionarily speaking, timing is everything. In paper published in an issue of Genetics, researchers say that beneficial mutations may occur more often than first thought, but many never emerge as "winners," because they don't fall within the narrow set of circumstances required for them to dominate a population.
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