Below is an instruction from Human. Write a response.
    ### Instruction:
    Is 22q11.2 deletion syndrome inherited ?
    ### Response:
    Is 22q11.2 deletion syndrome inherited? Most cases of 22q11.2 deletion syndrome are not inherited from a parent and are caused by a random error during the formation of egg or sperm cells, or during early fetal development. In about 10% of cases, the deletion is inherited from a parent with the deletion.
    