Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the genetic changes related to Bardet-Biedl syndrome ?
    ### Response:
    Bardet-Biedl syndrome can result from mutations in at least 14 different genes (often called BBS genes). These genes are known or suspected to play critical roles in cell structures called cilia. Cilia are microscopic, finger-like projections that stick out from the surface of many types of cells.
    