You will be given a definition of a task first, then some input of the task.
In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Its presence would increase the probability of a hyperchromic shift and decrease the melting temperature. Its namesake N-glycosylase always recognizes it as a mistake to be replaced via excision repair. The product of deamination from cytosine, which causes the disappearance of G-C base pairs from DNA, this pyrimidine is abundant even if folic acid is deficient. Isolated from herring sperm, FTP name this nucleotide base that pairs with adenine, but only in RNA.
Output:
Science