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.

Imetelstat, a potential new cancer therapy agent, works by targeting the enzyme that repairs these   structures. Blackburn, Greider, and Szostak received the 2009 Nobel Prize for determining the role of  these structures, which typically adopt a G-quadruplex shape. The shortening of these structures   explains the Hayflick limit to cell division and is the basis for the cellular theory of aging, and that  shortening of these structures can lead to cell senescence or apoptosis. Consisting of thousands of  TTAGGG repeats in humans, name these end sequences of chromosomes that prevent genes from  being lost during DNA replication.
Science

It holds only when the molecular attraction between different components is equal to the attraction of any one component in its pure state. Dealing primarily with changes in colligative properties, it allows for the calculation of molecular weights of dissolved substances and leads to the definition of a solution as ideal. FTP, identify this law that relates the vapor pressure and mole fraction of a solution, a law named for its French discoverer.
Science

The Treaty of Fort Stanwix involved acquisition of land south of this river. In the late 1700's, this river was the southern boundary of the Northwest Territory. The mouth of this river is located in Cairo, Illinois and this river flows through such cities as Wheeling and Evansville. The Wabash is one of the largest tributaries of this river. In the heart of Pittsburgh, this river is formed by the joining of the Monongahela and Allegheny rivers. For 10 points, name this river which as its name suggests forms the southern border of a state with capital at Columbus.

Social Science