10973
The ratio of adult beta-globin/alpha-globin mRNA in the mutant ES cells was 1/15 of that in wild-type ES cells .
 ( cell type: wild-type ES cells, None) , ( RNA: adult beta-globin/alpha-globin mRNA, None) , ( cell line: mutant ES cells, 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:
 ( cell type: wild-type ES cells, None) , ( RNA: adult beta-globin/alpha-globin mRNA, None) , ( cell line: mutant ES cells, None) 