4125
Analysis of the inactive X specific methylation at the androgen receptor gene showed unbalanced inactivation in the twins ' fibroblasts and in opposite directions.
 ( DNA: androgen receptor gene, None) , ( DNA: inactive X, 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: androgen receptor gene, None) , ( DNA: inactive X, None) 