Genetic markers (filled circle) along the chromosome 22q11 region. The 3 Mb and 1.5 Mb typical deletions are marked above the chromosome. Below it are the approximate positions of known genetic and custom primers that were used to interrogate the current novel deletion. Proximal and distal SRBOs, along with the approximate breakpoint positions are also shown.
Uddin et al. BMC Medical Genetics 2006 7:18 doi:10.1186/1471-2350-7-18