13468
Identification of upstream regulatory elements that repress expression of adult beta-like globin genes in a primitive erythroid environment .
 ( DNA: upstream regulatory elements, None) , ( DNA: adult beta-like globin 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: upstream regulatory elements, None) , ( DNA: adult beta-like globin genes, None) 