Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Chromosome 4q deletion ?
    ### Response:
    Chromosome 4q deletion is a chromosome abnormality that affects many different parts of the body. People with this condition are missing genetic material located on the long arm (q) of chromosome 4 in each cell. The severity of the condition and the associated signs and symptoms vary based on the size and location of the deletion and which genes are involved.
    