<prompt> Crohns disease is associated with:NOD-2CARD-15 geneP53 suppressor genePhiladelphia chromosomesBRCA-1 gene  <response>: Etiology : Unknown Infectious agents proposed as potential causes: Mycobacterium paratuberculosis and measles virus IBD-1 chromosome 16q Relatively specific for Crohns disease IBD-2 chromosome 12q More common in Ulcerative colitis on 16q CARD-15NOD2 mutation lead to CD 