Below is an instruction from Human. Write a response.
    ### Instruction:
    Is mannose-binding lectin deficiency inherited ?
    ### Response:
    The inheritance pattern of mannose-binding lectin deficiency is unclear. Some reports show that having a disease-associated mutation in one copy of the MBL2 gene in each cell can lead to the condition, while other reports state that a mutation in both copies of the gene is necessary.
    