Carolyn: The artist Marc Quinn has displayed, behind a glass plate, biologically replicated fragments of Sir John Sulston' s DNA, calling it a conceptual portrait of Sulston  But to be a portrait, something must bear a recognizable resemblance to its subject  Arnold: I disagree
Quinn' s conceptual portrait is a maximally realistic portrait, for it holds actual instructions according to which Sulston was created
is actually a portrait of Sulston