Which Disease Results from Deletion of The $\beta$ -Globin Gene Cluster LCR?
A)Sickle-Cell Disease
B)Mild

Multiple Choice

Which disease results from deletion of the $\beta$ -globin gene cluster LCR?

A) Sickle-cell disease
B) Mild $\beta$ -thalassemia.
C) Severe $\alpha$ -thalassemia.
D) Mild $\beta$ -thalassemia
E) Severe $\beta$ -thalassemia