Will one C kill my chances?

<p>Throughout high school i've had a strong chance of getting into Dartmouth, my dream school. I've had a GPA above a 4.0 the entire time, strong EC's and SAT scores, and even a recommendation from a US Congressmen. It's November though, and I'm almost positive that i'm going to end up with a C in AP Bio, since I failed one of only two tests before the final. I will still have a 4.1 for the semester, but will this seriously kill my chances? </p>