There shall continue to be a Board of Trustees for The University of Connecticut to consist of twenty-one persons, twelve to be appointed by the Governor, who shall reflect the state’s geographic, racial and ethnic diversity; two to be elected by the university alumni; two to be elected by the students enrolled at the institutions under the jurisdiction of said board; and five members ex officio. On or before July 1, 1983, the Governor shall appoint members to the board as follows: Four members for a term of two years from said date; four members for a term of four years from said date; and four members for a term of six years from said date. Thereafter, the Governor shall appoint trustees of said university to succeed those appointees whose terms expire, and each trustee so appointed shall hold office for a period of six years from the first day of July in the year of his or her appointment, provided two of the trustees appointed for terms commencing July 1, 1995, and their successors shall be alumni of the university, one of the trustees appointed for a term commencing July 1, 1997, and his or her successors shall be such alumni and one of the members appointed for a term commencing July 1, 1999, and his or her successors shall be such alumni. The Commissioner of Agriculture, the Commissioner of Education, the Commissioner of Economic and Community Development and the chairperson of The University of Connecticut Health Center Board of Directors shall be, ex officio, members of the board of trustees. The Governor shall be, ex officio, president of said board. The graduates of all of the schools and colleges of said university shall, prior to September first in the odd-numbered years, elect one trustee, who shall be a graduate of the institution and who shall hold office for four years from the first day of September succeeding his or her election. Not less than two or more than four nominations for each such election shall be made by the alumni association of said university, provided no person who has served as an alumni trustee for the two full consecutive terms immediately prior to the term for which such election is to be held shall be nominated for any such election. Such election shall be conducted by mail prior to September first under the supervision of a canvassing board consisting of three members, one appointed by the board of trustees, one by the board of directors of the alumni association of the university and one by the president of the university. No ballot in such election shall be opened until the date by which ballots must be returned to the canvassing board. In such election, all graduates shall be entitled to vote by signed ballots which have been circulated to them by mail and which shall be returned by mail. Vacancies occurring by death or resignation of either of such alumni trustees shall be filled for the unexpired portion of the term by special election, if such unexpired term is for more than eighteen months. When the unexpired term is eighteen months or less, such vacancy shall be filled by appointment by the board of directors of said alumni association. On or before November 1, 1975, the students of The University of Connecticut shall, in such manner as the board of trustees of said university shall determine, elect two trustees, each of whom shall be enrolled as a full-time student of said university at the time of his or her election. One such member shall be elected for a term of one year from November 1, 1975, and one for a term of two years from said date. Prior to July first, annually, such students shall, in accordance with this section and in such manner as the board shall determine, elect one member of said board, who shall be so enrolled at said university at the time of his or her election and who shall serve for a term of two years from July first in the year of his or her election. The student member elected to fill the term expiring on June 30, 2003, and such elected member’s successors, shall be enrolled as a full-time undergraduate student at a school or college of the university and shall be elected by the undergraduate students of the schools and colleges of the university. The student member elected to fill the term expiring on June 30, 2004, and such elected member’s successors, shall be enrolled as a full-time student in the School of Law, the School of Medicine, the School of Dentistry, the School of Social Work, or as a graduate student of a school or college of the university, and shall be elected by the students of the School of Law, the School of Medicine, the School of Dentistry, the School of Social Work and the graduate students of the schools and colleges of the university. Any student member elected after July 1, 2013, shall be enrolled as a full-time student at the time of his or her election and for the duration of his or her term of service. Any vacancies in the elected membership of said board shall, except as otherwise provided in this section, be filled by special election for the balance of the unexpired term.