Microcytosis is seen in -
Causes of microcytosis (MCV < 80fl)
• Iron deficiency anemia
• Thalassemia
• Sideroblastic anemia
• Anemia of chronic disease
In Hb Barts, all the four a chain genes are deleted resulting in formation of Barts Hb.
In Hb Lepore, there is nonhomologus fusion of b and d genes and forms an abnormal hemoglobin with total absence of normal b chain. It is one of the form of b thalassemia minor.
Thalassemia
Hb Lepore
Hb bart's
All of the above