Which one in man is a wholly genetic trait?

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(C) Albinism is a genetic disorder characterized by the absence of pigment in the skin,hair,and eyes. It is primarily inherited as an autosomal recess

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Albinism

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(C) Albinism is a genetic disorder characterized by the absence of pigment in the skin,hair,and eyes. It is primarily inherited as an autosomal recessive trait. Most commonly,it is caused by mutations in the $TYR$ gene located on the long arm of chromosome $11$,which encodes the enzyme tyrosinase. It can also be caused by mutations in other genes,such as the $P$ gene located on the long arm of chromosome $15$. Diphtheria and Tuberculosis are infectious diseases caused by bacteria,while Leucoderma (Vitiligo) is generally considered an autoimmune condition,not a purely genetic trait.

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