<p>Are undergrads allowed to take graduate level classes here? I'm wondering about the graduate biology classes.</p>
<p>Yes, definitely, at least in the math department. I'm fairly sure that this extends to other departments. The decision is left completely up to the discretion of the professor teaching the course, in most cases. In the math department, for instance, there's regularly a number of third-/fourth-/fifth-years who take graduate-level math classes.</p>
<p>Yes, in some cases, you don't even have to ask for an add code. I'm a freshman and am thinking of some grad-level AMath or Statistics courses sophomoreyear.</p>