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 A 14-year-old intellectually disabled child presented to the OPD for the first time with hyper-extensible finger joints and macro-orchidism along with characteristic facial features. MRI of the brain was done. Which of the following sequence repeats is seen in the above condition: - and explain in detail?
This is a case of Fragile- X syndrome. MRI image shows diffuse brain atrophy. X-linked dominant inheritance. The facial features, which include a long face, large ears, and a prominent square jaw. There are variable number of trinucleotide (CGG) repeats in FMR1 gene.