Application after senior year

<p>Hi, I am a senior student from Turkey and as I hadn't took any SAT so far, I won't be able to apply to universities in US this year, however I will take national exam in Turkey and i am planning to get into a university this year. Anyway my question is: Am I able to apply for top schools after my senior year while I am in the preparatory class of my university? Would this reduce my chance to get an acceptation or not? Thanks for your responses.</p>