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.
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Question: Question: An essential characteristic of plasmids is:
Options: <0> Be able to integrate into the genome of the host cell. <1> Direct the process of bacterial conjugation. <2> Carry genes for antibiotic resistance. <3> Replicate autonomously. <4> Being circular DNA molecules.

Answer: biology

Question: Question: In a potentiometry at zero intensity the electrode:
Options: <0> Indicator always measures balance potentials. <1> Indicator measures the half-wave potential. <2> Indicator can measure a mixed potential. <3> Reference is always a calomel platinum electrode. <4> Indicator is always a platinum electrode.

Answer: chemistry

Question: Question: One of the following effects is characteristic of morphine consumption:
Options: <0> Mydriasis. <1> Eye flushed. <2> Excessive tearing. <3> Miosis <4> Increased intraocular pressure.

Answer:
pharmacology