US chemist Alice Ball was born in Seattle, Washington, on 24 July 1892. She came from a middle-class African-American family of photographers; her grandfather, James Presley Ball, was one of the first ...

The study showed that the protein PUMA frees p53 from the grip of a third protein, Bcl-xL, so p53 can activate the series of signals that triggers programmed cell suicide. The chimp genome's closeness ...