<p>You should be able to do anything you want at JHU if you do your core for the deparment.</p>
<p>[JHU</a> Biology BA Program](<a href=“http://www.bio.jhu.edu/Undergrad/BAProgram.aspx]JHU”>http://www.bio.jhu.edu/Undergrad/BAProgram.aspx)</p>
<p>[Undergraduate</a> Program](<a href=“http://www.chemistry.jhu.edu/Undergraduate/requirements.html]Undergraduate”>http://www.chemistry.jhu.edu/Undergraduate/requirements.html)</p>
<p>[Undergraduate</a> Program](<a href=“http://www.chemistry.jhu.edu/Undergraduate/requirements.html]Undergraduate”>http://www.chemistry.jhu.edu/Undergraduate/requirements.html)</p>
<p>Based on the core and biology vs chemistry, chemistry seems a bit more open which may be your answer. You should talk to each department if you are concerned and dont want to entirely depend outdated web material.</p>