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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Microcytosis is seen in -
assistant
The correct answer is  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.