Integrative Genomics Viewer (IGV) sequence data. IGV snapshot of sequence data at HLA-B for one HapMap sample (NA18507), and the corresponding calls made from the data. Each horizontal bar represents one read, and colored bars indicate where DNA base pairs differ from the reference.
Erlich et al. BMC Genomics 2011 12:42 doi:10.1186/1471-2164-12-42