10096
Further experiments using subsets of nucleotides and DNA mutations allowed us to reprogram the transcription start sites , in a way that can be described by repositioning of the single - stranded transcription bubble relative to the RNAP active site within RP ( o ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None