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

(B) Haemophilia is autosomal dominant

(C) Haemophilia is X-linked recessive

(D) Haemophilia is Y-linked dominan

Answer 1

Correct option (C) Haemophilia is X-linked recessive

Explanation:

Female parent is carrier and male and female offspring is affected