3742
Our results therefore show that allele loss on chromosome 20q in polycythemia vera does not commonly involve mitotic recombination or chromosome loss and that microsatellite instability is a rare event in this disorder.
 ( DNA: chromosome, None) , ( DNA: chromosome 20q, 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: chromosome, None) , ( DNA: chromosome 20q, None) 