revoke

I was thankfully accepted into a T10 med school today earlier this week, but I had a question about a W I received last semester. Essentially long story short, I had to withdraw from my senior thesis class that was an elective, not prereq. I wrote on my 1° application about my thesis writing...

Hi guys I was accepted to IUSO and paid my deposit. Problem is I may have recieved a C- in Biochem. Which is one of their prereqs. I would retake the course but I just graduated. Could they revoke my acceptance for this?