The study of experimental evolution in Escherichia coli has provided unprecedented insights into the mechanisms of adaptive mutations, elucidating how populations diverge and optimise their fitness ...

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 ordinary ...

Beneficial mutations happen quite frequently, but the world changes too fast for them to stick.

For more than half a century, many biologists have leaned on the neutral theory of molecular evolution to explain how DNA and proteins change over time. The idea grew from early work in the 1960s, ...

Adverse genetic mutations can cause harm and are due to various circumstances. 'Jumping genes' are one cause of mutations, but cells try and combat them with a specialized RNA called piRNA.

Adverse genetic mutations can cause harm and are due to various circumstances. "Jumping genes" are one cause of mutations, but cells try and combat them with a specialized RNA called piRNA. For the ...