In regard to DNA damage, the ataxia-telangiectasia mutated (ATM), Fanconi anemia E3 monoubiquitin ligase core complexes (FANC transcripts—A/B/E/F/G/M), FANC2, FANCI, BRCA1, BRCA2, RAD51, PALB2, and ATR (ATM- and Rad3-related) genes were among the most affected. The gene discussed is ATM; the disease is Fanconi anemia.