So next semester, I'll be taking Bio II but I don't want to take the lab portion together with it (it's offered separately in my school). I plan on taking it senior year, since I don't like labs. Will this be fine with AOs?
I don't see why not. Fit your requirements in where you can, do well on them, and you should be fine. Take labs later than lecture is an advantage since you'll essentially be going over all of the material you've already digested. It makes lab more fun and less stressful to even understand the concepts of what you're applying, IMHO.