<prompt> Familial polyposis coli is due toAbnormality of chromosomes fiveAbnormality of chromosomesIntestinal tuberculosisIntussusception  <response>: .desmoid tumour is often associated with the familial polyposis colon FAP, osteomas, odontomes epidermal cysts-- Gardners syndrome.it is usually due to genetic abnormality involving chromosome 5. ref:SRB;s manual of surgery ,ed 3,pg no 776 