Hemoglobin A (Hb A) Is the most common kind of hemoglobin (Hb) in adults, accounting for about 95-98 percent of all hemoglobin detected in adults; Hb A has two alpha protein chains and two betas (ß) protein chains.Hemoglobin A2 (Hb A2) – accounts for around 2-3.5 percent of adult hemoglobin (Hb); it contains two alpha and two delta () protein chains.Hemoglobin F (Hb F, fetal hemoglobin) – accounts for 1% to 2% of adult hemoglobin (Hb); it contains two alpha () and two gammas () protein chains. The major hemoglobin generated by a growing infant (fetus) during pregnancy is hemoglobin F (Hb F, fetal hemoglobin). Its production typically declines during a year of birth and reaches adult levels within 1-2 years.For more information, consult Aspira Diagnostics the best Diagnostic Centre in Mumbai.
