So I am naturally terrible at standardized tests. I had this same problem back when I was taking the SATS and it prevented me from getting into better undergraduate institutions. My GRE was 157V/152Q/3.5AW. HOWEVER, my undergraduate Institution requires Comprehensive Exams to graduate, and I passed those with Honors. Unfortunately, that was this past Fall and will not be shown on the transcripts I used to apply.
The lesson is that GRE scores have no bearing on what you know about your science. Your GRE score only reflects how well you do on the GRE. That's it.