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: This city contains the Mexican neighborhood of Olvera Street. Three inclined hovertrains in this city's Brentwood neighborhood can be used to access its Getty Center. Panoramic views from this city can be seen from Griffith Observatory and along Mulholland Drive. Prehistoric animals trapped the (*) La Brea Tar Pits can be found in this city, which is home to a building constructed of twisted metal sheets designed by Frank Gehry. In addition to the Walt Disney Concert Hall, this city contains Grauman's Chinese Theater in its most famous neighborhood. For ten points, identify this California city home to Hollywood.

SOLUTION: Social Science

PROBLEM: One image representing this deity in stelae is a boy with a sidelock, in which guise he is often shown in a position of dominance to crocodiles and hippos. In the Heliopolitan Ennead Hathor is his consort. The uniting of Upper and Lower Egypt might be symbolized by the story of his conflict with his uncle, in which this deity's semen is discovered by the gods to be in his uncle's stomach. A sky god often depicted with the sun as one eye and the moon the other, FTP name this deity usually shown with the head of a falcon.

SOLUTION:
Social Science