This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic Disorders, Subject name: Biochemistry
[{'content': 'Cat eye syndrome is: \nSelect and explain. \nA. Trisomy 13, B. Trisomy 18, C. Trisomy 21, D. Trisomy 22', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Cat eye syndrome Defect in chromosome number 22 sho arm (p) and a small section of the long arm (q) of chromosome 22 is present 3-4 times instead of the usual 2 times. C/F: Unilateral/bilateral iris coloboma Anal atresia Cleft palate Sho stature Hernias Renal abnormalities', 'role': 'assistant'}]