The Daily Pennsylvanian is a student-run nonprofit. Please support us by disabling your ad blocker on our site. Image Weissman Laboratory Penn Medicine Research CRISPR Team Project Leader Pipette Candid.jpg By Sukhmani Kaur 11/17/20 9:38pm Istvan Tombacz from the Weissman laboratory prepares his samples for a gel electrophoresis. PennConnects