1471
The RI alpha gene is composed of nine coding exons of varying lengths , separated by introns , giving the gene a total length of at least 21 kb . our recent cloning of a processed RI alpha pseudogene with a 5 ' - noncoding region different from the previously reported RI alpha complementary RNA indicated that the RI alpha gene may have multiple leader exons giving rise to alternately spliced messenger RNAs ( mRNAs ) .
 GENE: RI alpha gene; GENE: RI alpha pseudogene; GENE: RI alpha complementary RNA; GENE: RI alpha gene
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: RI alpha gene; GENE: RI alpha pseudogene; GENE: RI alpha complementary RNA; GENE: RI alpha gene