take my advice and dont waste your time on a stupid graduate program. that is what i did and am doing and its nothing but a true waste of time. why? because the undergrad GPA is what is used to compare students to each other. and thats the key to the game.
in my situation, i did a masters, but i took tons of upperdivision bio course that are basically undergrad...like anatomy, medical micro, immuno..and tons more, trust me. but it was all incorporated into my graduate GPA. and adcoms can say "graduate GPA's are inflated." which is true, and they wont even consider that GPA. plus, not everyone has a grad gpa, so what good is that as far as comparing applicants? so usually what happens is that they just look over the grad GPA, dont really care and trash your application if you have a bad undergrad gpa.
also, as far as different grad programs varying in difficulty etc.. that is true, but how are you gonna convince the adcoms? u gotta play the game right.
i would recommend getting involved in postbacc undergrad work. the easier the school the better. postbacc gpa is a better gauge for them, so its more respectable to do well with the postbacc. name. take like a heavy load of science classes and get all A's. show them you can handle it while playing the game as well. do that for a year or two and you will be good as gold.
or dont even graduate and take classes so its all incorporated into your undergrad gpa. cuz once you graduate, that GPA is now officially sealed. its known as ur undergrad GPA. then you have postbacc gpa or a grad gpa.
unless you are really interested in getting that masters degree, dont waste your time trying to impress adcoms that you are a "graduate student." youre basically wasting your precious time.
-thesis boy