Group( D )

A2 (HbA2):مهمه

A (HbA):مهمه

HbF:

........Characterized by two defective genes but almost no function of either gene?

.....individuals have a severe form of disease requiring lifelong transfusion

......Characterized by two defective genes مهمه

......Characterized by one defective gene and one normal gene.مهمه

......Individuals may experience mild anemia but do not require transfusion.

.....his condition is usually incompatible with extrauterine life and results in hydrops fetalis?مهمه

......leading to the severe form of homozygous alpha thalassemia

.....This condition results from the deletion of all alpha genes on both copies of chromosome 16,مهمه

......Patients usually present with severe anemia, splenomegaly, jaundice, and abnormal red blood cell indices.

is a form of alpha thalassemia in which moderately severe anemia .مهم