A person is suffering from disease phenylketonuria, which is an autosomal recessive disease. Which o

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4.Principles of Inheritance and Variation

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A person is suffering from disease phenylketonuria, which is an autosomal recessive disease. Which of these is lacking in the person?

A

Homogentisic acid

B

Phenylalanine hydroxylase

C

Caeruloplasmin

D

Cystine

Solution

Phenylketonuria is due to deficiency of liver enzyme phenylalanine hydroxylase.

Standard 12

Biology

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