122
The RNase MRP RNA gene was deleted by insertional replacement and found to be essential for cellular viability , indicating a critical nuclear role for RNase MRP .
 GENE: RNase MRP RNA gene; GENE: RNase MRP
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: RNase MRP RNA gene; GENE: RNase MRP