7860
We have inactivated Krox - 20 by homologous recombination in ES cells and demonstrated that the mutation leads to the deletion of r3 and r5 .
 GENE: Krox - 20
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Krox - 20 
Answer:
 GENE: Krox - 20