Cause of alpha thalasemia -: (A) Deletion of alpha genes, (B) Deletion of beta genes, (C) Excess of alpha genes, (D) Single amino acid substitution in alpha chain
Answer is A. Ans. is 'a' i.e., Deletion of alpha genes a thalassemiasAlpha thalassemias are hemoglobin disorders in which the a chain of the hemoglobin is not/partly synthesized. a chains are required for all types of hemoglobin synthesis of all types of hemoglobin i.e.HbA (a2 b2)HbF (a2 g2)* HbA2 (a2d2)