Pre recs for do school

Hey I am applying this summer for DO school and have already taken the mcat but wanted to know if it was mandatory to have completed all pre requisite courses before applying or all Pre requisite courses completed before graduating. I have not take cell biology and one other pre-req/required biology course and plan to take it in my senior year. Is that/do you think that will be a problem when applying?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums