What does gene A do? What does gene B do? What does it do in different contexts? What's its importance? We know the answer to that for a very small number of genes, the ones that made themselves evident many years ago.
As a privileged survivor of the First World War, I hope I may be allowed to interject here a deeply felt tribute to those who were not fortunate enough to succeed, but who shared the signal honor of trying to the last to salvage peace.

