I don't believe it's a "Death Sentence" at all and if you're lucky adcom might not even identify the mistake...
MS Word's "Spell Checker", however, underlines the word "UniverCity" and may lead adcom to the conclusion that you do not work very conscientiously, especially as the mistake occurred on your resume that you probably have used over and over again.
In any case, bugging adcom over something as trivial would prove poor judgment on your part... Just let it be...