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The kinetics of expression of the two genes were also slightly different, with c-fos mRNA reaching a peak at 15 min after stimulation and c-jun at 30 min.
 RNA: c-fos mRNA; DNA: c-jun
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 RNA: c-fos mRNA; DNA: c-jun