Read the following statements and find out the incorrect statement

Options

A. Alpha thalassemia is controlled by two closely linked genes `HBA_(1)` and `HBA_(2)` on chromosome 16 of each parent and it is observed due to mutation or deletion of one or more of the four genes.
B. Beta thalassemia is controlled by a single gene HBB on chromosome 11 of each parent and occurs due to mutation of one or both the genes.
C. Beta thalassemia is also called Cooley's anemia or thalassemia major
D. None of the above.

Answer

D