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
A baby presenting with multiple deformities, cleft lip, cleft palate, microphaly, small eyes, scalp defect and polydactyly, seen in which syndrome 
Select and explain. 
A. Trisomy 13, B. Trisomy 18, C. Trisomy 21, D. Monosomy 2
A: Trisomy 13
Answer: A: Trisomy 13 
Explanation: Multiple deformities,cleft lip ,cleft palate,microcephaly,small eyes,polydactyly and scalp defects are a feature of trisomy 13 or Patau syndrome. Image shows features of patau syndrome. Reference: Nelson TB of pediatrics pg 404 19th edition.