Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Question: In the study of proteins. What is the purpose of treatment with -mercaptoethanol ?:
Options: <0> Hydrolyze the protein. <1> Break the disulfide bridges. <2> Add positive charges. <3> Add negative charges. <4> General an amino acid derivative in Edman degradation.
Student:
chemistry