tokens: Although both transcripts share the first nine exons , exon 10 of ZIS-2 is lacking in ZIS-1 , and instead , exon 11 ( 10th exon ) of ZIS-1 is larger in size , leading to the longer 3 ' - UTR .
folded_tokens: although both transcript share the first nine exon , exon 10 of zis-2 be lack in zis-1 , and instead , exon 11 ( 10th exon ) of zis-1 be larger in size , lead to the longer 3 ' - utr .