You could go to one chromosome, download the .fa (fasta) file, fire up R Studio and follow this tutorial: <a href="http:&#x2F;&#x2F;a-little-book-of-r-for-bioinformatics.readthedocs.org&#x2F;en&#x2F;latest&#x2F;src&#x2F;chapter1.html" rel="nofollow">http:&#x2F;&#x2F;a-little-book-of-r-for-bioinformatics.readthedocs.org...</a>