Study the pedigree chart given below:
What does it show?
Inheritance of a sex-linked inborn error of metabolism
Inheritance of a condition like phenylketonuria as an autosomal recessive trait
The pedigree chart is wrong as this is not possible
Inheritance of a recessive sex-linked disease like haemophilia
, Phenylketonuria is an inborn error of metabolism inherited as an autosomal recessive trait . In pedigree analysis, an autosomal recessive trait (like sickle-cell anaemia or phenylketonuria) typically shows unaffected parents (carriers) having affected offspring, and the trait can appear in both males and females , .
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