Grade points are a bare minimum. Pretty much everyone has A's or B's in their science courses, if you don't, you should be retaking them for your own good. Nobody looks at a calculated GPA. Most schools
require a B or better (3.0) in all prerequisities, so having at least a 3.0 doesn't do much to help you stand out. That's just what saves your application from the garbage can.
Everyone looking to apply gets caught up in this GPA nonsense. It means nothing. If you don't have good grades, yeah, you're not going to get in. Meet your school's bare minimum criteria, then do something for yourself to stand out. I did good on my GRE, had my CCRN, 3 years ICU experience, taught clinical for a college, and went in well prepared for my interview. Apparently that was enough.