1725
We also examined tow of the XISTE- ring chromosomes to determine whether genes that are normally silent on an inactive X are expressed from these chromosomes .
 ( DNA: chromosomes, None) , ( DNA: inactive X, None) , ( DNA: XISTE- ring chromosomes, None) , ( DNA: genes, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: chromosomes, None) , ( DNA: inactive X, None) , ( DNA: XISTE- ring chromosomes, None) , ( DNA: genes, None) 