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

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 ...

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 ...

In real life, mutants can arise when their DNA changes to give them an advantage over the rest of the population. A team from ...

When people donate blood, stem cells in the bone marrow make new blood cells to replace what was lost. This stress can drive the selection of certain clones—groups of blood cells with a slightly ...

Researchers at the Francis Crick Institute have identified genetic changes in blood stem cells from frequent blood donors that support the production of new, non-cancerous cells. Understanding the ...

IN THE POPULAR imagination, cancer starts with a mutation in the DNA of a normal cell. That mutation allows the cell to multiply uncontrollably, circumventing the body’s usual quality-control checks.