instruction:
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:
Question: On the molecular biology of cancer: 
 Options:  <0> Oncogenes are mutated derivatives of normal genes, called protooncogenes, whose function is to promote cell proliferation or survival. <1> Oncogenes are genes that synthesize proteins that inhibit cell proliferation. <2> The tumor suppressor genes synthesize proteins that inhibit cell death. <3> Protooncogenes synthesize proteins that promote cell death. <4> Apoptosis is a form of activation of proto-oncogenes.
answer:
chemistry


question:
Question: Within the perceptual distortions we can find: 
 Options:  <0> Hallucinations <1> The metamorphopsias. <2> The eidetic images. <3> Autoscopy (or double phenomena). <4> The parasitic images.
answer:
psychology


question:
Question: Mitochondrial electronic transport and oxidative phosphorylation: 
 Options:  <0> They are two different processes, but coupled. Without electronic transport there will never be oxidative phosphorylation. <1> Without oxidative phosphorylation there can never be electronic transport. <2> The net yield of oxidative phosphorylation is about 2.5 moles of ATP per mole of FADH2. <3> Cyanide is toxic because it binds to ATP synthase. <4> Uncoupling agents inhibit ATP synthase.
answer:

chemistry