AP Bio or Chemistry?

@MYOS1634 Yes, it is taught at my local community college with a focus on cell biology.

I think you should try the DE biology class plus the chemistry class, then. Both will be useful and the Biology class will only be a semester - if you can take it in the Spring you can list it on your list of classes.
In terms of rigor wrt Admissions, both DE taught at a college and AP are considered equally rigorous.