779
On genomic products exons 1 to 13 ( including 740 bp of the 3 untranslated sequence and all intron / exon boundaries ) were screened , as was a neuroretina specific enhancer in intron 4 .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
 Entities:  
Answer:
 None