Phenylketonuria is a congenital disease caused by a defect in the metabolism of the phenylalanine amino acid.This unmetabolized protein accumulates in the bloodstream and can prevent the brain from developing normally.If this condition goes undetected and untreated,the result is:

A) congenital abnormality
B) mental retardation
C) cleft palate
D) dwarfism

Question

​Phenylketonuria is a congenital disease caused by a defect in the metabolism of the phenylalanine amino acid.This unmetabolized protein accumulates in the bloodstream and can prevent the brain from developing normally.If this condition goes undetected and untreated,the result is:A)  ​congenital abnormalityB)  ​mental retardationC)  ​cleft palateD)  ​dwarfism

karamveer singh · Accepted Answer

Final Answer : B, Explanation :  Phenylketonuria (PKU) leads to the accumulation of phenylalanine in the body, which can cause brain damage and intellectual disabilities if not treated, hence leading to mental retardation.

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