well ehem, lemme me be the first to help you 😀
first, it is a "quasi-blind interview"....that is they have your name, first page of UC application, personal statement, but no GPA or MCAT 😉
and from there, it's anyone luck....some people got drilled on their personal statement, explain your research, background etc, (so know that well)....you get one student and one faculty.....it really varies, as you will see in other interviews as well...I personally got mostly biographical questions, but a friend of mine got drilled with ethical and hypothetical questions by her interviewer...
typical questions are, your weakest and strong points? why medicine (always the case), why Irvine....