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: A promoter place in the DNA: 
 Options:  <0> Transcribe the repressor. <1> Start the transcription. <2> It encodes the RNA polymerase. <3> Regulate the termination. <4> Translate specific proteins.

A: chemistry
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Q: Question: What type of amino acid side chains will compete with saline ions for solvation water ?: 
 Options:  <0> Apolares. <1> Aliphatic <2> Aromatic <3> Polar <4> Without charge.

A: chemistry
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Q: Question: The sequencing of an oligosaccharide is done by: 
 Options:  <0> Degradation Edman. <1> Chromatography Whatman. <2> Patch-Clamp. <3> Mass spectrometry. <4> Capillary electrophoresis.

A:
pharmacology
****