17048
Many DNA polymerases also possess a separate 3 ' - 5 ' exonuclease activity that is used to remove misincorporated nucleotides from the nascent DNA ( proofreading ) .
 Chemical: nucleotides
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: nucleotides