Hey you Kr... 😀
At the time of application you need to have 2/3 of the required pre-req courses finished. If you don't have 2/3 fulfilled then you won't even be considered for an interview flat out. Once you fulfilled 2/3, you're safe. You won't be "penalized" for having not completed the other 1/3.
Here is the list of prereq courses needed for OSU:
Biology 1
Biology 2
Gen Chem 1
Gen Chem 2
Org Chem 1
Org Chem 2
Physics 1
Physics 2
Microbiology - 1 semester
Biochemistry - 1 semester
Anatomy - 1 semester (2 semesters if it is a combined Anatomy & Physiology course)
So, in order for you to get considered for OSU, you need to have fulfilled 8 of the 11 classes mentioned above by the time you apply.
Talk to ya later IntlMed