Mepụta ụdị nke ahịrịokwu a dị mgbagwoju anya A maara Richard Axel dị ka onye na-egwu opera nke ukwuu ma onye mmeri nrite Nobel bụ Eric Kandel kpọrọ ya'onye na-egwu opera '.
N'ezie, ụdị ahịrịokwu dị mgbagwoju anya bụ "Richard Axel bụ onye ama ama maka ịbụ nnukwu onye na-egwu opera ma soro Joan Sutherland mee ihe ngosi mbụ ya na New York's Metropolitan Opera na enyi ya nke ụlọ akwụkwọ sekọndrị Jerold Brenowitz, onye mechara bụrụ dọkịta na-awa obi. "