7288
A skewed XCI pattern with greater than 75% amplification of 1 allele ( allele ratio > 3:1) was found in 22 (9.1%) of 242 control subjects .
 ( DNA: allele, None) , ( DNA: allele, 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: allele, None) , ( DNA: allele, None) 