1524
BFU-E -derived colonies increase progressively in size, as determined by cell number, from day 7 to day 14 of culture, with the greatest increase in colony size (10-fold expansion) occurring between day 7 and day 10.
 ( cell line: BFU-E -derived colonies, None) , ( cell type: BFU-E, 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 line: BFU-E -derived colonies, None) , ( cell type: BFU-E, None) 