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
Simian crease is not seen in - 
Select and explain. 
A. Down, B. Trisomy 13, C. Atopic dermatitis, D. Noonan syndrome
C: Atopic dermatitis
Answer: C: Atopic dermatitis 
Explanation: Ans. is 'c' i.e., Atopic dermatitisSimian creaseo Single transverse palmer creaseo Resembles non-human-simian so K/a simian crease,o It is seen inDown syndromeFetal alcohol syndromeCri-du chat syndrome (Chr. 5)Klinefelter (XXY)Noonan (Chr. 12)Patau (Chr. 13)Edward (Chr. 18)