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Question

Alkaptonuria (aa) is which type of error?
  1. Induced error
  2. Lethal mutation
  3. Metabolism error
  4. Error in number of chromosome

A
Metabolism error
B
Induced error
C
Error in number of chromosome
D
Lethal mutation
Solution
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Alkaptonuria is an autosomal recessive genetic disorder in which the body cannot metabolise the amino acids phenylalanine and tyrosine. Affected individuals may have dark urine or urine that turns black when exposed to air.
So, the correct option is 'Metabolism error'.

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