Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: The RAN protein is used for the transport of materials in and out of the pores of this organelle. Observed with Hoechst and DAPI staining, this organelle, when found in tumors, contains Cajal bodies. Continuous with the rough endoplasmic reticulum, this organelle is the site of histone proteins, as well as the production of ribosomes and transcription of DNA. Not found in prokaryotes, for 10 points, name this "control center" of the cell.
Output:
Science