Study the pedigree chart given below:



What does it show?

1. Inheritance of a sex-linked inborn error of metabolism
2. Inheritance of a condition like phenylketonuria as an
autosomal recessive trait
3. The pedigree chart is wrong as this is not possible
4. Inheritance of a recessive sex-linked disease like
haemophilia

Subtopic:  Pedigree Analysis: Problem Solving | Mendelian Disorders |
 77%
From NCERT
AIPMT - 2009

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A woman with normal vision but with colorblind father marries a colorblind man. The fourth child of the couple is a boy. This boy
1. May or may not be colorblind
2. Must be colorblind
3. Must have normal vision
4. Will be partially colorblind due to being heterozygous

Subtopic:  Pedigree Analysis: Problem Solving |
 74%
From NCERT
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