Hello, I have a newbie question: How does UCSC genome browser determine where the introns are in the genomes? I read how they build the gene annotations @ http://genome.ucsc.edu/cgi-bin/hgTra...r1&g=knownGene, but could not understand how they determine where the introns are. I am just wondering if the introns come with the gene predictions from other databases, i.e., refseq, genbank, ... or if the introns are downloaded from a whole another database? Thanks!
DH.
DH.
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