Test zone by Matthew Modoono November 6, 2023 Share Facebook LinkedIn Twitter PhD student Jiyoun Ahn and May Pham, who studies biochemistry work on mutating DNA of polymerase kappa inside the EXP building on Northeastern’s Boston campus. Photo by Matthew Modoono/Northeastern University Northeastern students Jiyoun Ahn and May Pham work on mutating DNA in a lab located inside the new EXP building on the Boston campus. Photo by Matthew Modoono/Northeastern University