TASK DEFINITION: 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.
PROBLEM: Coombs tests detect these bodies bound to erythrocytes, and a technique that uses these entities is ELISA. These molecules have a namesake fold, in which two beta sheets are held together by amino acid charges. These adaptable molecules can somatically recombine in a process called V(D)J recombination and are also capable of changing isotype by altering conformation of their heavy chains. Like enzymes, they operate via a a so-called "lock-and-key" mechanism, as verified by Linus Pauling. FTP, name these characteristically y-shaped immune molecules exploited in vaccination and produced by B cells in response to specific antigens.

SOLUTION: Science

PROBLEM: Cardinal Thomas Gibbons' defense of this organization would lead to Pope Leo XIII issuing an encylical, Rerum Novarum, supporting organizations of their kind. In contrast with its inclusive reputation, a chapter of this group was involved in the Seattle riots of 1886. Internal feuding following the failed Missouri Pacific railroad strike of 1886, and the emergence of a rival organization of skilled craftsmen, meant that by 1900, this organization was almost nonexistent. Name this labor organization that helped lobby for the Chinese Exclusion Act and, for 10 points, was founded by nine tailors in Philadelphia in 1869 and reached its peak under Terence V. Powderly.

SOLUTION: History

PROBLEM: This works plot is based on events related in its authors travel memoir The Lawless Roads. Minor characters in this work include an English dentist, Mr. Tench, who witnesses an execution, and a young man whose virtuous life and death are told to the boy. The protagonist encounters the atheist girl Coral Fellows while hiding in a barn, and he is given sanctuary by the Lehrs in the neighboring state. He finds his illegitimate child Brigida and her mother Maria before meeting the Mestizo, who tracks him throughout the novel until he is caught by the Lieutenant and executed for his religious practices. FTP name this novel about an unnamed Mexican priest by Graham Greene.

SOLUTION:
Literature