Multiple choice Oncogenes were discovered by Joseph E. Murray and E. Donnall Thomas Peter C. Doherty and Rolf M. Zinkernagel Peter Agre and Roderick MacKirron J. Michael Bishop and Harold E. Varmus Frank Macfarlane Burnet and Peter Brian Medawar Reveal answer Fill a bubble to check yourself D Correct answer Explanation Bishop and Varmus discovered cancer-causing genes called oncogenes and awarded Nobel Prize in 1989 for this work.