12020
The selective alteration of the genome using Cre recombinase to target the rearrangement of genes flanked by LOX recognition sequences has required the use of two separate genetic constructs in trans , one containing cre and the other containing the gene of interest flanked by LOX sites .
 GENE: Cre recombinase; GENE: LOX recognition sequences; GENE: LOX sites
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: Cre recombinase, LOX recognition sequences, LOX sites 
Answer:
 GENE: Cre recombinase; GENE: LOX recognition sequences; GENE: LOX sites