MD What do you think?

Hey Everyone!

So the first few years of college, I messed up due to an illness and didnt do so well. The sciences courses I did, I got like D's in. I went back and retook them.

I took my sciences classes and these are the grades I got:

Bio 1- B
Bio 2- B
GenChem 1 - A
GenChem 2- B
Orgo 1- A
Orgo 2- B
Physics- A
Phy 2- B

What is my science GPA and what are my chances at MD?

Also, what can I do to improve my science GPA? Can I take upper level science courses in BIO and if I get A's, have a shot at this?

Please do let me know. This is my passion.