Karl Zimmer

Karl Günter Zimmer (12 July 1911 – 29 February 1988), PhD, was a German nuclear chemist who is best known for his work in understanding the ionizing radiation on Deoxyribonucleic acid (DNA).

In 1935, he published the major work, Über die Natur der Genmutation und der Genstruktur, with N. V. Timofeev-Resovskij, and Max Delbrück; it was considered to be a major advance in understanding the nature of gene mutation and gene structure. From 1945-55,, Zimmer was participated in the former Soviet program of nuclear weapons but left Russia to eventually settle in Germany.