Which of the following disorders is sex linked ?
(A) Haemophilia
(C) Sickle cell anaemia
(B) Thalassemia
(D) Mongolism



Answer :

Final answer:

Hemophilia is a sex-linked disorder primarily affecting males due to its inheritance on the X chromosome.


Explanation:

Hemophilia is a sex-linked disorder that is found on the X chromosome. It occurs predominantly in males because they only inherit a single X chromosome and if the gene for factor 8 or 9 on it is defective, they will have the disease. Females can be carriers of the trait and may pass it on to their male offspring. Other examples of sex-linked disorders include red-green color blindness.


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