10145
Using transgenic Xenopus embryos , we demonstrate that the integrity of these two sequences is necessary for correct spatial expression of a Xbra2 promoter - driven reporter gene .
 Xbra2 promoter - driven reporter gene
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Xbra2 promoter - driven reporter gene