RAZIN, AHARON (1935– ), Israeli biochemist. Born in Tel Aviv, Israel, he received his Ph.D. in biochemistry from the Hebrew University of Jerusalem in 1967, continuing his postdoctoral studies at the California Institute of Technology from 1968 to 1970. From 1971 he taught cell biochemistry and human genetics at the Hebrew University and held the Dr. Jacob Grunbaum Chair in Medical Science from 1988. His career included research and teaching posts at Cambridge University, the Beckman Cancer Research Center, and the NIH. Between 1994 and 2000, he was a member of the advisory committee on human genome research of the Israeli Academy of Sciences. Razin was awarded the Israel Prize in 2004 for his research in biochemistry and was among the outstanding figures in this field in Israel and internationally. His studies made significant contributions to the furtherance of the understanding of geneexpression control mechanisms, and he was a pioneer in the understanding of the biological role of DNA methylation.