To apply a neutral model of evolution to a population, Hahn explained, you don’t have to know how strong selection is, how large the population is, whether mutations are dominant or recessive, or ...

ANN ARBOR—For a long time, evolutionary biologists have thought that the genetic mutations that drive the evolution of genes and proteins are largely neutral: they're neither good nor bad, but just ...

Just as species adapt over generations, our body's cells accumulate DNA changes throughout life. Most are harmless, yet a few "driver" mutations give a cell a competitive edge and can spark cancer.