8030
Centromeres , the sites of spindle attachment during mitosis and meiosis , are located in specific positions in the human genome , normally coincident with diverse subsets of alpha satellite DNA .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None