PKU

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The mutated gene for PKU is on which chromosome?
Chromosome 12
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Which type of allele is PKU casued by?
Autosomal recessive. Therefore, the individual must inherit two mutated form of genes.
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What does the normal gene code for?
Phenylalanine hydroxylase
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What does phenylalanine hydroxylase do?
Breaks down the amino acid phenylalanine into tyrosine
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What happens as a result of the mutated gene?
Phenylalanine can't be broken down by the enzyme phenylalanine hydroxylase.
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Brain damage in children is a result of...
Phenylalanine building up in the blood and tissue fluid.
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What does PKU stand for?
Phenylketonuria
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How do doctors diagnose PKU?
A heel ***** test on a baby. The blood is then checked in a lab for high levels of phenylalanine.
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Card 2

Front

Which type of allele is PKU casued by?

Back

Autosomal recessive. Therefore, the individual must inherit two mutated form of genes.

Card 3

Front

What does the normal gene code for?

Back

Preview of the front of card 3

Card 4

Front

What does phenylalanine hydroxylase do?

Back

Preview of the front of card 4

Card 5

Front

What happens as a result of the mutated gene?

Back

Preview of the front of card 5
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