This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic and genetic disorders, Subject name: Pediatrics
[{'content': "Triangular facies is indicative of ________ \nSelect and explain. \nA. Russell-Silver syndrome, B. Down's syndrome, C. Mobius syndrome, D. Nephrotic syndrome", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Triangular facies is indicative of Russell-Silver syndrome. Russell-Silver Syndrome: Clinical features: Sho stature, triangular face(small jaw and pointed chin), microcephaly, limb and facial symmetry, 5th finger clinodactyly A few cases are due to genomic imprinting disorder involving chromosome 11 Ref: Nelson textbook of pediatrics 21st edition Pgno: 286, 3476', 'role': 'assistant'}]