The genetic code is the recipe for life, and provides the instructions for how to make proteins, generally using just 20 amino acids. But certain groups of microbes have an expanded genetic code, in ...

A US clinic is offering would-be parents the chance to select traits like height and intelligence to "genetically optimise" their future babies on top of the usual screenings for hereditary diseases.

There are few hard and fast rules in the study of life, but perhaps the closest we get is the central dogma of molecular biology: DNA is transcribed to RNA, which gets translated into proteins. The ...