In congenital dystrophic variety of epidermolysis bullosa, mutation is seen in the gene conding for –: (A) Laminin 4, (B) Collagen type 7, (C) Alpha 6 integerin, (D) Keratin 14
Answer is B. Dystrophic epidermolysis bullosa (dermal type EB) there is defect in the enzyme collegenase and type 7 collegan.