To graduate the programme from Adelphi University, the student must maintain a minimum 2.0 average in the major and complete a minimum of 16 biology credits applicable to the major at Adelphi University. Courses numbered 300?400 are open only to juniors and seniors, and to sophomores only with permission of the instructor. All requirements for the major must be graded on an A?F scale, except BIO 492, which is offered only on a Pass/Fail basis.