As to chances:
As to the various GPAs you cite, understand how your college grades get reported when you apply to med school. When you submit an application you must self report all college courses you ever enrolled in (even hs). A separate GPA (sGPA) will be calculated for all science courses taken (ie bio, chem, physics math, or BCPM), a separate GPA will be calculated for any non science courses taken (AO), and a cumulative GPA (cGPA) will be calculated for each individual year. In addition an overall sGPA, AO, and cGPA will also be calculated, with both yearly and your overall sGPA and cGPA being most important. Your anthropology, geology courses will be treated as AO courses. Your zoology, chem, intro to bio will be part of your sGPA.
Go to link below 2018 AMCAS application guide to see how courses are classified
https://students-residents.aamc.org/applying-medical-school/applying-medical-school-process/applying-medical-school-amcas/
Med schools are going to ask themselves if an applicant can cut it academically (eg sGPAs, cGPAs, MCAT). It appears you only have completed one premed science req (gen chem). Without grades in other premed reqs and a MCAT score, it’s simply impossible to venture a guess as to your chances.
In addition although your time as an RA as provided you with skills that med schools value (eg leadership, communication, etc), med schools will expect to see that you participated in medically related ECs.
I’m not saying you have no chance but you want to apply with the strongest application possible as 60% of those that actually apply fail to start at any med school. Your question as to chances is too premature as you are probably two or more years away from having a competitive application. You should have completed premed reqs before MCAT. Keep in mind that there’s a saying about applying to med school, it’s a marathon, not a sprint. Also understand that there are many different opportunities in health care, besides MD. Good luck.