<prompt> Most common Hemoglobin in normal adult is: March 2005HbAHbFHbSHbA2  <response>: Ans. A: HbA In the embryo-Gower 1 C2 r2 Gower 2 a2E2 In the fetus: hemoglobin F a2y2 In the adults: Hemoglobin A GA - The most common with a normal amount over 95 Hemoglobin A 2 a26, - Chain synthesis begins late in the third trimester and in adults, it has a normal range of 1.5-3.5 Hemoglobin A1c is increased in the patients with poorly controlled diabetes mellitus 