Sorry to hear about your situation but many others went through what you are going through due to the current economic conditions.
Because you have no work experience after college, I would not consider MBA program right now. It's an option that you may consider down the road, if it makes sense.
At this point, if you wish to enter a graduate program for a good career, you will have to consider the following graduate degrees (which are for recent graduates with zero work experience):
1) Med School: You already said no to this option
2) Law School: Legal job market sucks right now. However, that doesn't mean that you can't get a good job right now. If that was the case, the Yale Law School across from my campus would be quite empty right now. With your unique background in biochem, you may be an ideal candidate for career in corporate law/patent in pharma, etc.
3) MS in Finance: You have a quant background. Assuming that you took enough math and science courses in undergrad, you will probably qualify for the Applied Mathematics, Financial Engineering etc programs
4) MS Statistics/Actuarial Science: Have friends who took this route after undergrad. All ended up with multiple job offers from insurance companies, ibanks, consulting firms (risk management, pension etc)
5) MS in Accounting: Probably the least viable option if you like quantitative courses and etc. But accounting firms are always hiring.
GMAT Club Premium Membership - big benefits and savings