University of Wisconsin-Madison

Can anyone speak to what the experience is like for a freshman or sophomore gen’l bio major at UW who is trying to find what field of bio they might be interested in? She wants to be exposed to a broad range of biological areas (immunology, virology, genetics, cellular, environmental, neuroscience) but not be turned off by poor teaching/huge lectures with on-line learning, etc. Are there intro courses that are good that cover all of these things? Or take many intro courses? And what would that be like? Ultimately interested in research (PhD, MD, or both).