Below is an instruction from Human. Write a response.
    ### Instruction:
    Is dystrophic epidermolysis bullosa inherited ?
    ### Response:
    The most severe types of dystrophic epidermolysis bullosa are inherited in an autosomal recessive pattern. Autosomal recessive inheritance means that both copies of the COL7A1 gene in each cell have mutations. Most often, the parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but do not show signs and symptoms of the condition.
    