653
They contain a large ( 0 . 9 X 10 ( 3 ) to 1 . 88 X 10 ( 3 ) base - pairs ) intron in the middle of the gene and are further interrupted close to the 5 ' end of the gene .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None