In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.

Question: The binding of an allosteric activator to an allosteric enzyme typically results in:
Options: <0> Decrease the Vmax. <1> The transition to a less soluble state. <2> Decrease the Km by its substrate. <3> The transition to hyperbolic kinetics. <4> The dissociation of its subunits.
chemistry

Question: In the presence of a patient with suspected blistering pemphigoid, which of the following tests should we perform to confirm the diagnosis?
Options: <0> Dermatoscopy. <1> Cultivation of the contents of a blister. <2> Skin biopsy for culture. <3> Skin biopsy for histological study and direct immunofluorescence. <4> Analytical with determination of antinuclear and anti DNA antibodies.
medicine

Question: The great diversity of immunoglobulins is mainly due to the recombination of:
Options: <0> Epitopes. <1> Light chains <2> Heavy chains <3> Exons <4> Introns
chemistry