NEET 2013 Biology question

The incorrect statement with regard to Haemophilia is :

(1)It is a sex-linked disease
(2)It is a recessive disease
(3)It is a dominant diseaseCorrect
(4)A single protein involved in the clotting of blood is affected

Answer: (3)

Solution

Haemophilia is an X-linked (sex-linked) recessive disease: the mutant gene is on the X chromosome and is expressed in males (XhY) and homozygous females (XhXh). Heterozygous females (XHXh) are carriers. A single protein of the

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Question ID VK-091460