This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition & Digestion, Subject name: Biochemistry
A child with kinky hair, intellectual disability, seizures. What is the diagnosis? 
Select and explain. 
A. Down's syndrome, B. Menke's disease, C. Iron deficiency anemia, D. Lesch Nyhan syndrome
B: Menke's disease
Answer: B: Menke's disease 
Explanation: Ans. B. Menke's DiseaseMenke's (Kinky or Steely) Hair SyndromeMutation in ATP7A geneX-linked recessive conditionDefective Copper binding P type ATPaseCopper is not mobilised from Intestine.Deficiency of Xanthine oxidase.