Biology · Principles of Inheritance and Variation
In a pedigree chart, a cross between a normal couple results in a haemophilic son and a normal daughter. In course of time, when the daughter marries a normal man, their son (grandson of the original couple) is also found to be haemophilic. Choose the option that indicates the correct inheritance pattern of this trait:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Autosomal dominant trait
- 2Sex-linked dominant trait
- 3Autosomal recessive trait
- 4Sex-linked recessive trait✓
Correct answer
Sex-linked recessive trait
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