You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is 8 year old boy is brought with c/o progressive weakness & difficulty getting up the shows the following finding what is the MC type of mutation leading to this condition? and explain in detail?
Frame shift mutation Inseion or deletion of genes can alter the reading frame of the DNA Eg: Muscular dystrophy Mutation of DMD gene at Xp21 encodes dystrophin- sarcolemal Protein C/f : progressive weakness difficulty in getting up