(a) The cancer prevention and research interest and sinking fund is a dedicated account in the general revenue fund.
(b) The fund consists of:
(1) patent, royalty, and license fees and other income received under a contract entered into as provided by Section 102.255; and
(2) interest earned on the investment of money in the fund.
(c) The fund may be used only to pay for debt service on bonds issued as authorized by Section 67, Article III, Texas Constitution, at a time and in a manner to be determined by the legislature in the General Appropriations Act.