Ulla Hansen is a professor emerita of biology at Boston University.
[1] Hansen received her bachelor's degree in 1974 from Oberlin College and her Ph.D. in 1980 from Harvard University, where she worked with William R. McClure.
[2] She became an assistant professor at Harvard Medical School in 1983, and moved to the department of biology at Boston University in 1998.
[2] Hansen's research specialty is the mammalian cell cycle, in particular the role of transcription factors.
[4] Hansen coauthored several heavily cited papers, including the review article "Active repression mechanisms of eukaryotic transcription repressors"[5][6][7] in Trends in Genetics.