Prompt
Create a realistic portrait of Susumu Tonegawa, a Japanese neuroscientist and immunologist, sitting in a laboratory setting with a subtle background of scientific equipment and papers, wearing a thoughtful expression, with a hint of a smile, and a few grey strands of hair, in a style that conveys a sense of intellectual curiosity and achievement, suitable for a renowned scientist who was awarded the Nobel Prize in Physiology or Medicine in 1987 for his discovery of the genetic mechanism for the generation of antibody diversity.
