Robert Lefkowitz and Brian Kobilka have won the Nobel Prize in chemistry for tracking down a diverse family of proteins on the surface of cells and revealing the atomic details of how they work.

A geneticist and a former consultant whose son has a rare metabolic disease have formed a company to predict disease risk in hypothetical children based on the DNA of prospective parents.

Researchers tinkering with cancer drugs and related molecules have found reversible ways of altering sperm; now they need to secure money and regulatory support for drug testing.