Which undergraduate school would be best suited for someone focusing on cancer research? What types of programs and opportunities are available for this field?
Ag and Life Sciences or Human Ecology. Both have good bioscience majors. I know several people who did grad programs in HumEc in Human Nutrition who went on to work in bioscience fields including cancer research.
… or Arts & Sciences.
Suggest go to the website of each college and read. Including read up on course and in-college credit requirements.