<p>Did you not proof read it? Anyway, it may hurt you a little; you're applying to a college and they expect you to be able proof-read. But I don't think it would be the end of the world, especially if the rest of your application is strong.</p>
<p>Don't worry. If you have good grades and test scores the admissions officer won't suddenly think you're not Cal material because of a few minuscule typos.</p>