11903
As an application of reverse genetics , we introduced one nucleotide change ( UCU to ACU ) to immediate downstream of the RNA - editing site of the V gene in the full - length hPIV2 cDNA and were able to obtain infectious viruses [ rPIV2V ( - ) ] from the cDNA .
 GENE: V gene
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: V gene 
Answer:
 GENE: V gene