<p>At some schools that offer both BA and BS in the same field, the differences include the number of courses that included labs, the amount and difficulty of the mathematics required, and possibly, but not usually, an undergraduate research thesis. Quite often a premed student will take the BA option, whereas a student interested in graduate school in the sciences would be sure to get the BS.</p>
<p>If you are graduating from a school with only the BA option, I doubt that it would be a problem. However, if it means there are not many laboratory-based courses available, I suppose that could have repercussions for your next move. I didn’t realize there were schools that did not offer the BS option in the experimental sciences.</p>