Francis Crick portrait unveiled to honour breakthrough DNA work

Posthumous painting by artist Robert Ballagh celebrates scientist who, along with James Watson, made pioneering discovery

A posthumous portrait of the scientist Francis Crick, commissioned by James Watson, with whom he famously discovered the structure of DNA in 1953, has been revealed on Wednesday, the day that would have been his 100th birthday.

The portrait by the Irish artist Robert Ballagh, who has previously painted Watson, will hang in the Francis Crick Institute, a new science centre named in his honour, when it opens in St Pancras, London, later this year.