transferring from UC to UC, is it possible?

<p>I will be attending UCR this fall and want to transfer to UCI or UCLA after 2 or possibly 1 year(several ppl said that you could do that in 1). say that i work my butt off and get a 3.8 gpa, would i get in? Also will they ask for a excuse to transfer to another campus? is it good enough if i say that i want to apply to med school and both uci and ucla have top notch biology department? any input welcome</p>