1.

Sickle-cell anaemia is caused due to the substitution of :A. Valine at the 6th position of alpha globin chain by glutamic acidB. Glutamic acid at the 6th position of beta globin chain by valineC. Valine at the 6th position of beta globin chain by glutamicD. Glycine at the 6th position of alpha globin chain by glutamic acid

Answer» Correct Answer - B


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