i took a lot of my pre reqs at community college
mind u the schools im talking about are state schools in texas.
at my cc, we had a pre-health adviser (crap load of nursing, pre-opt, pre-pharm students).
she actually got to sit in on admissions with some of the medical schools in texas as well as dental schools.
she told me they view cc as legitimate and they made a point about it to her and two other visiting profs.
but when i went to a&m, my pre-health advisor said
"u took ur pre reqs at cc?! go major in BIOLOGY NOW! and make sure u can continue an upwards trend"
it would be wise to check with ur state schools or schools ur interested in.
my advice:
u can take a couple of classes at CC that are pre-reqs and it won't be a big deal. couple of classes meaning (like max ~4)
also if ur not a bio major, and ur just supplementing the core pre-reqs (genbio,genchems,orgos, physics, english,cal) u completed at the 4 yr level, then by all means take micro and human a&p at cc. it only helps and shows ur motivated if u were say an english or finance major. hope that helps.