14764
Cytogenetic studies of the primate Y chromosomes have suggested that extensive rearrangements have occurred during evolution of the great apes .
 ( DNA: primate Y chromosomes, None) , ( DNA: Y chromosomes, 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: primate Y chromosomes, None) , ( DNA: Y chromosomes, None) 