How does having the gene for Duchenne's muscular Dystrophy actually give you the Symptoms of Duchenne's muscular Dystrophy? (please help, this prompt is in essay format and I can't do it rn cause I've literally been sick for 11 weeks)

The answer is B cells. They are involved in humoral immunity of adaptive immunity. They secrete immunoglobulin (antibodies), which are also the receptors on their cell membrane. These receptors are significant in antigen presentation to T -cells. Memory B cells produce a clone of antibodies.