What is HbA? 2. When is this the predominant Hb in human body? 3. Electrophoresis that shows low or absent HbA and elevated HbF and HbA2 is indicative of what? 4. What is made prior to six months? Why do children with this condition take that long to present?

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Hematology is the study of blood and the disorders related to it. Human blood consists of blood cells and plasma


1. What is HbA? 2. When is this the predominant Hb in human body? 3. Electrophoresis that shows low or absent HbA and elevated HbF and HbA2 is indicative of what? 4. What is made prior to six months? Why do children with this condition take that long to present?