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(C) The disorder described is $\beta$-Thalassemia. $1$. $\beta$-Thalassemia is a quantitative disorder where the production of the $\beta$-globin chai

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$\beta$-Thalassemia

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(C) The disorder described is $\beta$-Thalassemia. $1$. $\beta$-Thalassemia is a quantitative disorder where the production of the $\beta$-globin chain of hemoglobin is reduced or absent. $2$. This is caused by mutations in the $HBB$ gene located on chromosome $11$. $3$. In contrast,Sickle cell anemia is a qualitative disorder caused by a mutation in the $HBB$ gene that results in the production of abnormal hemoglobin $(HbS)$ rather than a reduction in the quantity of the chain. $4$. Hemophilia is a sex-linked recessive disorder related to blood clotting factors,not hemoglobin synthesis.

Which disorder is caused when the synthesis of the $\beta$-globin chain of hemoglobin is affected due to a single gene $HBB$,leading to a quantitative change in the hemoglobin structure?

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