"An abnormalities form in DNA (Xeroderma pigmentosum (XP)".
" Xeroderma pigmentosum (XP) " is a genetic disorder in which there is a decreased ability to repair DNA damage such as that caused by ultraviolet (UV) light. Symptoms may include a severe sunburn after only a few minutes in the sun, freckling in sun exposed areas, dry skin and changes in skin pigmentation. Nervous system problems, such as hearing loss, poor coordination, loss of intellectual function and seizures, may also occur. The picture below shows the victim of XP Complications include a high risk of skin cancer, with about half having skin can...