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Question

Consider the following pedigree over four generations and mark the correct answer below about the inheritance of haemophilia.


A

Haemophilia is X-linked dominant

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B

Haemophilia is autosomal dominant

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C

Haemophilia is X-linked recessive

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D

Haemophilia is Y-linked dominant

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Solution

The correct option is C

Haemophilia is X-linked recessive


Male is always haemophilic and Female can be carrier and haemophilic lethal.


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