Copyright © The Nobel Foundation 2007
Calligrapher: Susan Duvnäs
Photo reproduction: Fredrika Berghult
"for their discoveries concerning the interaction between tumour viruses and the genetic material of the cell"
"for their discovery of the mechanisms in the biological synthesis of ribonucleic acid and deoxyribonucleic acid"
"for their discovery of the cellular origin of retroviral oncogenes"