What is the mode of inheritance of phenylketonuria?

1.Autosomal recessive2.Autosomal dominant
3.Sex linked recessive4.Sex linked dominant

Subtopic:  Mendelian Disorders |
 88%
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In Phenylketonuria,

I. Phenylpyruvic acid and other derivatives are accumulated in the brain resulting in mental retardation.
II. These are also excreted through urine because of their poor absorption by the kidney.

1.Only I is correct2.Only II is correct
3.Both are correct4.Both are incorrect

Subtopic:  Mendelian Disorders |
 87%
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Mendelian disorders are mainly determined by:

1. Alteration or mutation in a single gene.
2. Chromosomal gross structural changes.
3. Recombination between linked genes.
4. Jumping genes
Subtopic:  Mendelian Disorders |
 82%
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