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: A ubiquitin ligase that marks specific proteins which the 26S proteasome breaks down is known as its (*) promoting complex, and in plants, the step immediately following it features vesicles moving along the phragmoplast. The step preceding it is ended by inactivation of cyclin dependent kinases, and the kinetochore fibers become shorter during this step. Chromatid pairs separate into identical chromosomes, which are subsequently pulled to the poles by the spindle fibers. FTP, identify this step of cell division that follows metaphase.

SOLUTION: Science

PROBLEM: This equation's accuracy can be improved if used in conjunction with Lorentz-Hudson-McCoubrey combining rules for modeling interactions between unlike molecules. The trace of fluid-solid coexistence curves can be performed by utilizing Kofke's method for this equation's associated integration. This relation can serve as a test for consistency for the Hubbard approximation if the external magnetic field and chemical potential are chosen as its two intensive parameters. The Lewis-Randall rule relates this equation to Henry's Law, and the Clausius-Claperyon equation can be derived from this relation assuming the two phases are in equilibrium. For 10 points, name this doubly eponymous equation that determines the relationship between changes in chemical potential for components in a system, named after a French energeticist and a Yale physicist.

SOLUTION: Science

PROBLEM: In one isothermal version of this technique for protein ligand studies in a calorimeter, a binding
polynomial is used to analyze the data. Before fluorescence-activated cell sorting, a version of this
technique using serial dilution is performed using the antibody of interest. This technique produces a curve
with inflection points for each dissociation equilibrium, which is why polyprotic samples have multiple
bumps on said curve. Samples are placed in burets for this procedure, and an indicator like phenolphthalein
is used to determine when the equivalence point has been reached. For 10 points, name this chemical
procedure which is used to find the concentration of an acid or base in a sample.

SOLUTION:
Science