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Assertion : Phenylketonuria is a recessi...

Assertion : Phenylketonuria is a recessive hereditary disease caused by the body 's failure to oxidize an amino acid phenylalanine to tyrosine , because of a defective enzyme.
Reason : It results in the presence of phenylalanine acid in the urine .

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
Phenyl ketonuria is an autosomal recessive disorder results when there is a deficiency of enzyme phenylalanine hydroxylase that convert phenylalanine into tyrosine. Accumulation of phenylalanine into causes stunted growth and mental retardation.
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