Chromosome 22

DGS. Deletion of genes in DiGeorge syndrome is visualized by a fluorescent signal on only one of the two copies of chromosome 22 IMAGE CREDIT: David Ian Wilson, University of Newcastle upon Tyne, UK NF2. Microscopic section of a schwannoma, a tumor commonly found in patients with neurofibromatosis, type 2 IMAGE CREDIT: Kevin Roth and Robert Schmidt, Washington University, St. Louis, MO, USA.