这个是录取吗？

tsjxdrUID: 2983542

Dear XX，
Upon the recommendation of the Admissions Committee, I am pleased to approve your admission to the M.S. in  Biochemistry and Molecular Biology program, effective with the Fall 2012 Semester.

Please respond to this offer of admission by April 15, 2012. A $500 non-refundable deposit is required by this date in order to ensure your place in the program. This deposit will be applied to your tuition upon matriculation. Admission to the program is not guaranteed after this confirmation deadline, and electronic responses will not be accepted after the deadline date. （这里这个500刀是什么意思啊？第一次，不太懂呢） Your admission is conditional upon receipt of the following item(s): official transcript showing conferral of your undergraduate degree （这个是什么意思啊？怕因为这个在无法录取，毕竟还没毕业啊，是官方成绩单的意思吗，我以前寄过一份到院系，现在是不是得再寄一份到admissions啊？） The admission condition(s) above must be submitted to Georgetown University, Office of Graduate Admissionsby August 31, 2012. 谢谢坛友了