2958
This model system exploits the polyomavirus late transcription termination and polyadenylation signals , which are sufficiently weak to allow the production of many multigenome - length primary transcripts with repeating introns , exons , and poly ( A ) sites .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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