8855
In conjunction with recent studies in yeast and mice , this ribonucleotide incorporation may be relevant to impaired development and disease when RNase H2 is defective in mammals .
 Chemical: ribonucleotide
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: ribonucleotide 
Answer:
 Chemical: ribonucleotide