This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics And Genetic Disorders, Subject name: Pediatrics
[{'content': 'In Turner syndrome all are seen except? \nSelect and explain. \nA. Mental retardation, B. 45, XO, C. Webbed neck, D. Short stature', 'role': 'user'}, {'content': 'Answer: A \nExplanation: a. Mental retardation(Ref: Nelson\'s 20/e p 2744-2746)Features of Turner Syndrome: "See there is A Baby CLOWN"S: Short stature. Sensorineural hearing loss, Short 4th metacarpalA: Amenorrhea primaryB: Barr body absentC: Cardiac anomaliesL: Lymphoedema, Low thyroidO: Ovaries under developed (streak ovaries)W: Webbed neckN: Nipples widely placed', 'role': 'assistant'}]