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.

Q: Question: Which of the following situations would noticeably decrease the transcription of a gene? 
 Options:  <0> The presence of a repressor and an inducing molecule. <1> The binding of RNA polymerase to DNA. <2> The presence of a repressor and a correpressor molecule. <3> The presence of an activator and its signal molecule. <4> The presence of a mutated repressor that could not bind to DNA.

A: pharmacology
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Q: Question: The aminoacyl-tRNA synthetases: 
 Options:  <0> They participate in the synthesis of the TRANs. <1> They participate in the maturation of the precursors of the TRANs. <2> They are responsible for the synthesis of amino acids. <3> They are responsible for the interpretation of the genetic code. <4> They synthesize parts of the ribosomes.

A: chemistry
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Q: Question: Indicate the correct answer regarding the Lawton index as a scale of assessment in geriatrics: 
 Options:  <0> Due to its complexity to be applied, it requires that the interviewer has been previously trained. <1> It must always be applied by direct observation of the person evaluated. <2> Several of its items are related to domestic tasks. <3> Evaluate the advanced activities of daily life. <4> Many of its items value activities associated with the male role.

A:
nursery
****