NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
Study the pedigree chart given below :
What does it show ?
What does it show ? - AInheritance of a recessive sex-linked disease like haemophilia
- BInheritance of a sex-linked inborn error of metabolism like phenylketonuria
- CThe pedigree chart is wrong as this is not possible
- DInheritance of a condition like phenylketonuria as an autosomal recessive trait
View written solutionFree
Correct answer: D
The chart shows the inheritance of a condition like phenylketonuria as an autosomal recessive trait. Parents’ needs to be heterozygous as two of their children are known to be sufferer of the disease. It cannot be recessive sex linked inheritance because then the male parent would also be sufferer.
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