<p>MCB labs are restricted enrollment courses, meaning many/most/all of their seats are reserved for the specific MCB tracks that require them. Also, semester one is fall right? If semester one is spring '10, then I would recommend you take MCB N130L over summer '10, as it would be easier to get into</p>
<p>Final note, from past experiences, two biology courses in one semester is tough, four would hell.</p>