Directions for: The questions consist of two statements each, printed as assertion and reason. While answering these questions you are required to choose any one of the following five responses 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 the Reason are true but the Reason is not a correct explanation of Assertion. C. If the Assertion is true but the Reason is false. D. If both the Assertion and the Reason are false. E. If Assertion is false but Reason is true.
Assertion: Phenylketonuria is recessive hereditary disease caused by bodys failure to oxidize an amino acid phenylalanine to tryosine because of a defective enzyme. Reason: It results the presence of phenylalanine acid in urine.A) A
B) B
C) C
D) D
E) E
Correct Answer: A
Solution :
Phenylketonuria is due to deficiency of liver enzyme phehylanine hydroxylase which converts phenylalanine into tryosine. It occurs in person who are homozygous recessive. It results with a high level of phenylalanine in blood, tissue fluids and urine.
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