30 Facts About Hair Defect With Photosensitivity And Mental Retardation
Hair Defect With Photosensitivity And Mental Retardation , also known as Trichothiodystrophy ( TTD ) , is a rare genetic upset . It affects hair , cutis , and brain development . conceive of having hair that is brittle and breaks easy , skin that is sensible to sunlight , and challenges with scholarship or mental development . This condition is triggered by mutation in genes responsible forDNA repair , making individuals more raw to UV light ....