Let's say I want to download the fasta sequence of the region chr1:100000..200000 from the UCSC browser. How do you do that? I can't find a button to 'export to fasta' in the UCSC genome browser. I think that the solution is to click on one of the tracks displayed, but I am not sure of which. If I go to the Tables section, I can't find a table with the fasta sequences among the many.